231487064 has 16 divisors (see below), whose sum is σ = 439533600. Its totient is φ = 114278112.

The previous prime is 231487057. The next prime is 231487097. The reversal of 231487064 is 460784132.

231487064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 182507 + ... + 183770.

It is an arithmetic number, because the mean of its divisors is an integer number (27470850).

Almost surely, 2^231487064 is an apocalyptic number.

It is an amenable number.

231487064 is a deficient number, since it is larger than the sum of its proper divisors (208046536).

231487064 is a wasteful number, since it uses less digits than its factorization.

231487064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366362 (or 366358 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 231487064 is about 15214.6989454277. The cubic root of 231487064 is about 614.0101856155.

The spelling of 231487064 in words is "two hundred thirty-one million, four hundred eighty-seven thousand, sixty-four".