231152532 has 24 divisors (see below), whose sum is σ = 580845216. Its totient is φ = 71123808.

The previous prime is 231152531. The next prime is 231152609. The reversal of 231152532 is 235251132.

It is a happy number.

It is a super-2 number, since 2×231152532² = 106862986100022048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231152531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740718 + ... + 741029.

It is an arithmetic number, because the mean of its divisors is an integer number (24201884).

Almost surely, 2^231152532 is an apocalyptic number.

It is an amenable number.

231152532 is an abundant number, since it is smaller than the sum of its proper divisors (349692684).

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

231152532 is a wasteful number, since it uses less digits than its factorization.

231152532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481767 (or 1481765 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 231152532 is about 15203.7012598906. The cubic root of 231152532 is about 613.7142654340.

The spelling of 231152532 in words is "two hundred thirty-one million, one hundred fifty-two thousand, five hundred thirty-two".