1051090385 has 4 divisors (see below), whose sum is σ = 1261308468. Its totient is φ = 840872304.

The previous prime is 1051090367. The next prime is 1051090387. The reversal of 1051090385 is 5830901501.

1051090385 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 720868801 + 330221584 = 26849^2 + 18172^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051090385 - 2⁶ = 1051090321 is a prime.

It is a super-2 number, since 2×1051090385² = 2209581994878896450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051090387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105109034 + ... + 105109043.

It is an arithmetic number, because the mean of its divisors is an integer number (315327117).

Almost surely, 2^1051090385 is an apocalyptic number.

It is an amenable number.

1051090385 is a deficient number, since it is larger than the sum of its proper divisors (210218083).

1051090385 is an equidigital number, since it uses as much as digits as its factorization.

1051090385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210218082.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 1051090385 is about 32420.5241320988. The cubic root of 1051090385 is about 1016.7480647301.

Adding to 1051090385 its reverse (5830901501), we get a palindrome (6881991886).

The spelling of 1051090385 in words is "one billion, fifty-one million, ninety thousand, three hundred eighty-five".