1051285117 has 4 divisors (see below), whose sum is σ = 1113125436. Its totient is φ = 989444800.

The previous prime is 1051285111. The next prime is 1051285159. The reversal of 1051285117 is 7115821501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7115821501 = 16651 ⋅427351.

It can be written as a sum of positive squares in 2 ways, for example, as 693848281 + 357436836 = 26341^2 + 18906^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051285117 - 2¹¹ = 1051283069 is a prime.

It is a super-2 number, since 2×1051285117² = 2210400794451407378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051285111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30920134 + ... + 30920167.

It is an arithmetic number, because the mean of its divisors is an integer number (278281359).

Almost surely, 2^1051285117 is an apocalyptic number.

1051285117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1051285117 is a deficient number, since it is larger than the sum of its proper divisors (61840319).

1051285117 is an equidigital number, since it uses as much as digits as its factorization.

1051285117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61840318.

The product of its (nonzero) digits is 2800, while the sum is 31.

The square root of 1051285117 is about 32423.5272140463. The cubic root of 1051285117 is about 1016.8108506906.

The spelling of 1051285117 in words is "one billion, fifty-one million, two hundred eighty-five thousand, one hundred seventeen".