100056857 has 4 divisors (see below), whose sum is σ = 100079376. Its totient is φ = 100034340.

The previous prime is 100056839. The next prime is 100056893. The reversal of 100056857 is 758650001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100056857 - 2²² = 95862553 is a prime.

It is a super-2 number, since 2×100056857² = 20022749265436898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100056557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123 + ... + 14304.

It is an arithmetic number, because the mean of its divisors is an integer number (25019844).

Almost surely, 2^100056857 is an apocalyptic number.

It is an amenable number.

100056857 is a deficient number, since it is larger than the sum of its proper divisors (22519).

100056857 is an equidigital number, since it uses as much as digits as its factorization.

100056857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22518.

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

The square root of 100056857 is about 10002.8424460250. The cubic root of 100056857 is about 464.2468356331.

The spelling of 100056857 in words is "one hundred million, fifty-six thousand, eight hundred fifty-seven".