232151131 has 4 divisors (see below), whose sum is σ = 232208064. Its totient is φ = 232094200.

The previous prime is 232151123. The next prime is 232151149. The reversal of 232151131 is 131151232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 232151131 - 2³ = 232151123 is a prime.

It is a super-2 number, since 2×232151131² = 107788295249158322, 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 = 232151099 and 232151108.

It is not an unprimeable number, because it can be changed into a prime (232151191) 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, 21835 + ... + 30676.

It is an arithmetic number, because the mean of its divisors is an integer number (58052016).

Almost surely, 2^232151131 is an apocalyptic number.

232151131 is a deficient number, since it is larger than the sum of its proper divisors (56933).

232151131 is an equidigital number, since it uses as much as digits as its factorization.

232151131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56932.

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

The square root of 232151131 is about 15236.5065221658. The cubic root of 232151131 is about 614.5967621276.

The spelling of 232151131 in words is "two hundred thirty-two million, one hundred fifty-one thousand, one hundred thirty-one".