231327215 has 32 divisors (see below), whose sum is σ = 336061440. Its totient is φ = 149428224.

The previous prime is 231327193. The next prime is 231327241. The reversal of 231327215 is 512723132.

It is not a de Polignac number, because 231327215 - 2⁸ = 231326959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51791 + ... + 56079.

It is an arithmetic number, because the mean of its divisors is an integer number (10501920).

Almost surely, 2^231327215 is an apocalyptic number.

231327215 is a deficient number, since it is larger than the sum of its proper divisors (104734225).

231327215 is a wasteful number, since it uses less digits than its factorization.

231327215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391.

The product of its digits is 2520, while the sum is 26.

The square root of 231327215 is about 15209.4449274127. Note that the first 3 decimals coincide. The cubic root of 231327215 is about 613.8688220439.

The spelling of 231327215 in words is "two hundred thirty-one million, three hundred twenty-seven thousand, two hundred fifteen".