1057098531 has 24 divisors (see below), whose sum is σ = 1460249392. Its totient is φ = 680140800.

The previous prime is 1057098509. The next prime is 1057098533. The reversal of 1057098531 is 1358907501.

It is not a de Polignac number, because 1057098531 - 2⁶ = 1057098467 is a prime.

It is a super-2 number, since 2×1057098531² = 2234914608484715922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1057098531.

It is not an unprimeable number, because it can be changed into a prime (1057098533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488091 + ... + 490251.

Almost surely, 2^1057098531 is an apocalyptic number.

1057098531 is a deficient number, since it is larger than the sum of its proper divisors (403150861).

1057098531 is an equidigital number, since it uses as much as digits as its factorization.

1057098531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343 (or 2302 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 1057098531 is about 32513.0517023549. The cubic root of 1057098531 is about 1018.6816657039.

The spelling of 1057098531 in words is "one billion, fifty-seven million, ninety-eight thousand, five hundred thirty-one".