231151032 has 72 divisors (see below), whose sum is σ = 728254800. Its totient is φ = 66042144.

The previous prime is 231151031. The next prime is 231151043. The reversal of 231151032 is 230151132.

231151032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231150996 and 231151014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231151031) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29232 + ... + 36287.

It is an arithmetic number, because the mean of its divisors is an integer number (10114650).

Almost surely, 2^231151032 is an apocalyptic number.

It is an amenable number.

231151032 is an abundant number, since it is smaller than the sum of its proper divisors (497103768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231151032 is a wasteful number, since it uses less digits than its factorization.

231151032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65545 (or 65531 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 231151032 is about 15203.6519297174. The cubic root of 231151032 is about 613.7129379218.

The spelling of 231151032 in words is "two hundred thirty-one million, one hundred fifty-one thousand, thirty-two".