1057881181 has 8 divisors (see below), whose sum is σ = 1209203840. Its totient is φ = 906607728.

The previous prime is 1057881137. The next prime is 1057881193. The reversal of 1057881181 is 1811887501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057881181 - 2¹⁵ = 1057848413 is a prime.

It is a super-2 number, since 2×1057881181² = 2238225186227909522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057881101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77395 + ... + 90031.

It is an arithmetic number, because the mean of its divisors is an integer number (151150480).

Almost surely, 2^1057881181 is an apocalyptic number.

It is an amenable number.

1057881181 is a deficient number, since it is larger than the sum of its proper divisors (151322659).

1057881181 is a wasteful number, since it uses less digits than its factorization.

1057881181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24603.

The product of its (nonzero) digits is 17920, while the sum is 40.

The square root of 1057881181 is about 32525.0854111100. The cubic root of 1057881181 is about 1018.9330060483.

The spelling of 1057881181 in words is "one billion, fifty-seven million, eight hundred eighty-one thousand, one hundred eighty-one".