1051552031 has 4 divisors (see below), whose sum is σ = 1051728552. Its totient is φ = 1051375512.

The previous prime is 1051552013. The next prime is 1051552037. The reversal of 1051552031 is 1302551501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1302551501 = 29 ⋅44915569.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051552031 is a prime.

It is a super-2 number, since 2×1051552031² = 2211523347800449922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051551988 and 1051552006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051552037) 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, 79001 + ... + 91346.

It is an arithmetic number, because the mean of its divisors is an integer number (262932138).

Almost surely, 2^1051552031 is an apocalyptic number.

1051552031 is a deficient number, since it is larger than the sum of its proper divisors (176521).

1051552031 is an equidigital number, since it uses as much as digits as its factorization.

1051552031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176520.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1051552031 is about 32427.6430071629. The cubic root of 1051552031 is about 1016.8968971498.

The spelling of 1051552031 in words is "one billion, fifty-one million, five hundred fifty-two thousand, thirty-one".