1057863081 has 32 divisors (see below), whose sum is σ = 1643000832. Its totient is φ = 598973760.

The previous prime is 1057863071. The next prime is 1057863083. The reversal of 1057863081 is 1803687501.

It is not a de Polignac number, because 1057863081 - 2⁵ = 1057863049 is a prime.

It is a super-2 number, since 2×1057863081² = 2238148596285625122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057863083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16431 + ... + 48843.

It is an arithmetic number, because the mean of its divisors is an integer number (51343776).

Almost surely, 2^1057863081 is an apocalyptic number.

1057863081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1057863081 is a deficient number, since it is larger than the sum of its proper divisors (585137751).

1057863081 is a wasteful number, since it uses less digits than its factorization.

1057863081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32493.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1057863081 is about 32524.8071631486. The cubic root of 1057863081 is about 1018.9271948120.

The spelling of 1057863081 in words is "one billion, fifty-seven million, eight hundred sixty-three thousand, eighty-one".