231372 has 18 divisors (see below), whose sum is σ = 584948. Its totient is φ = 77112.

The previous prime is 231367. The next prime is 231379. The reversal of 231372 is 273132.

231372 is nontrivially palindromic in base 5.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (231379) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3178 + ... + 3249.

2²³¹³⁷² is an apocalyptic number.

It is an amenable number.

231372 is an abundant number, since it is smaller than the sum of its proper divisors (353576).

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

231372 is a wasteful number, since it uses less digits than its factorization.

231372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437 (or 6432 counting only the distinct ones).

The product of its digits is 252, while the sum is 18.

The square root of 231372 is about 481.0114343755. The cubic root of 231372 is about 61.3908434534.

The spelling of 231372 in words is "two hundred thirty-one thousand, three hundred seventy-two".