100057865 has 8 divisors (see below), whose sum is σ = 120334920. Its totient is φ = 79869312.

The previous prime is 100057849. The next prime is 100057891. The reversal of 100057865 is 568750001.

It can be written as a sum of positive squares in 4 ways, for example, as 43191184 + 56866681 = 6572^2 + 7541^2 .

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 100057865 - 2⁴ = 100057849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19610 + ... + 24179.

It is an arithmetic number, because the mean of its divisors is an integer number (15041865).

Almost surely, 2^100057865 is an apocalyptic number.

It is an amenable number.

100057865 is a deficient number, since it is larger than the sum of its proper divisors (20277055).

100057865 is an equidigital number, since it uses as much as digits as its factorization.

100057865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44251.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 100057865 is about 10002.8928315763. The cubic root of 100057865 is about 464.2483946109.

The spelling of 100057865 in words is "one hundred million, fifty-seven thousand, eight hundred sixty-five".