1057026231 has 6 divisors (see below), whose sum is σ = 1526815680. Its totient is φ = 704684148.

The previous prime is 1057026227. The next prime is 1057026263. The reversal of 1057026231 is 1326207501.

It is a happy number.

1057026231 is a `hidden beast` number, since 1 + 0 + 570 + 2 + 62 + 31 = 666.

It is not a de Polignac number, because 1057026231 - 2² = 1057026227 is a prime.

It is a super-2 number, since 2×1057026231² = 2234608906044130722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057026195 and 1057026204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057026281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58723671 + ... + 58723688.

It is an arithmetic number, because the mean of its divisors is an integer number (254469280).

Almost surely, 2^1057026231 is an apocalyptic number.

1057026231 is a deficient number, since it is larger than the sum of its proper divisors (469789449).

1057026231 is a wasteful number, since it uses less digits than its factorization.

1057026231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117447365 (or 117447362 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1057026231 is about 32511.9398221638. The cubic root of 1057026231 is about 1018.6584410118.

The spelling of 1057026231 in words is "one billion, fifty-seven million, twenty-six thousand, two hundred thirty-one".