109912857 has 8 divisors (see below), whose sum is σ = 147180384. Its totient is φ = 72960288.

The previous prime is 109912849. The next prime is 109912867. The reversal of 109912857 is 758219901.

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

It is not a de Polignac number, because 109912857 - 2³ = 109912849 is a prime.

It is a super-2 number, since 2×109912857² = 24161672267804898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109912807) 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, 77923 + ... + 79320.

It is an arithmetic number, because the mean of its divisors is an integer number (18397548).

Almost surely, 2^109912857 is an apocalyptic number.

It is an amenable number.

109912857 is a deficient number, since it is larger than the sum of its proper divisors (37267527).

109912857 is a wasteful number, since it uses less digits than its factorization.

109912857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157479.

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 109912857 is about 10483.9332790704. The cubic root of 109912857 is about 479.0154254007.

The spelling of 109912857 in words is "one hundred nine million, nine hundred twelve thousand, eight hundred fifty-seven".