232156031 has 4 divisors (see below), whose sum is σ = 232319472. Its totient is φ = 231992592.

The previous prime is 232156027. The next prime is 232156051. The reversal of 232156031 is 130651232.

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 232156031 - 2² = 232156027 is a prime.

It is a super-3 number, since 3×232156031³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232155988 and 232156006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232156021) 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, 79571 + ... + 82436.

It is an arithmetic number, because the mean of its divisors is an integer number (58079868).

Almost surely, 2^232156031 is an apocalyptic number.

232156031 is a deficient number, since it is larger than the sum of its proper divisors (163441).

232156031 is a wasteful number, since it uses less digits than its factorization.

232156031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163440.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 232156031 is about 15236.6673193320. The cubic root of 232156031 is about 614.6010861828.

The spelling of 232156031 in words is "two hundred thirty-two million, one hundred fifty-six thousand, thirty-one".