231432115 has 8 divisors (see below), whose sum is σ = 278722800. Its totient is φ = 184476192.

The previous prime is 231432073. The next prime is 231432121. The reversal of 231432115 is 511234132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231432115 - 2¹³ = 231423923 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82165 + ... + 84934.

It is an arithmetic number, because the mean of its divisors is an integer number (34840350).

Almost surely, 2^231432115 is an apocalyptic number.

231432115 is a deficient number, since it is larger than the sum of its proper divisors (47290685).

231432115 is a wasteful number, since it uses less digits than its factorization.

231432115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167381.

The product of its digits is 720, while the sum is 22.

The square root of 231432115 is about 15212.8930516191. The cubic root of 231432115 is about 613.9615984287.

Adding to 231432115 its reverse (511234132), we get a palindrome (742666247).

The spelling of 231432115 in words is "two hundred thirty-one million, four hundred thirty-two thousand, one hundred fifteen".