231532364 has 12 divisors (see below), whose sum is σ = 463064784. Its totient is φ = 99228144.

The previous prime is 231532351. The next prime is 231532403. The reversal of 231532364 is 463235132.

231532364 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4134479 + ... + 4134534.

It is an arithmetic number, because the mean of its divisors is an integer number (38588732).

Almost surely, 2^231532364 is an apocalyptic number.

It is an amenable number.

231532364 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231532364 is a wasteful number, since it uses less digits than its factorization.

231532364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8269024 (or 8269022 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 231532364 is about 15216.1875645643. The cubic root of 231532364 is about 614.0502351497.

Adding to 231532364 its reverse (463235132), we get a palindrome (694767496).

The spelling of 231532364 in words is "two hundred thirty-one million, five hundred thirty-two thousand, three hundred sixty-four".