231432995 has 16 divisors (see below), whose sum is σ = 282245472. Its totient is φ = 182142720.

The previous prime is 231432991. The next prime is 231433001. The reversal of 231432995 is 599234132.

It is a happy number.

It is not a de Polignac number, because 231432995 - 2² = 231432991 is a prime.

It is a super-4 number, since 4×231432995⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231432991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237860 + ... + 238830.

It is an arithmetic number, because the mean of its divisors is an integer number (17640342).

Almost surely, 2^231432995 is an apocalyptic number.

231432995 is a deficient number, since it is larger than the sum of its proper divisors (50812477).

231432995 is an equidigital number, since it uses as much as digits as its factorization.

231432995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702.

The product of its digits is 58320, while the sum is 38.

The square root of 231432995 is about 15212.9219744269. The cubic root of 231432995 is about 613.9623766058.

The spelling of 231432995 in words is "two hundred thirty-one million, four hundred thirty-two thousand, nine hundred ninety-five".