100156231 has 16 divisors (see below), whose sum is σ = 121483584. Its totient is φ = 80607744.

The previous prime is 100156229. The next prime is 100156261. The reversal of 100156231 is 132651001.

It is not a de Polignac number, because 100156231 - 2¹ = 100156229 is a prime.

It is a super-2 number, since 2×100156231² = 20062541216250722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100156199 and 100156208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100156261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72261 + ... + 73633.

It is an arithmetic number, because the mean of its divisors is an integer number (7592724).

Almost surely, 2^100156231 is an apocalyptic number.

100156231 is a deficient number, since it is larger than the sum of its proper divisors (21327353).

100156231 is a wasteful number, since it uses less digits than its factorization.

100156231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 100156231 is about 10007.8085013653. The cubic root of 100156231 is about 464.4004776116.

The spelling of 100156231 in words is "one hundred million, one hundred fifty-six thousand, two hundred thirty-one".