231514977 has 8 divisors (see below), whose sum is σ = 309529216. Its totient is φ = 153922032.

The previous prime is 231514961. The next prime is 231515003. The reversal of 231514977 is 779415132.

231514977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 231514977 - 2⁴ = 231514961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231510977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104038 + ... + 106239.

It is an arithmetic number, because the mean of its divisors is an integer number (38691152).

Almost surely, 2^231514977 is an apocalyptic number.

It is an amenable number.

231514977 is a deficient number, since it is larger than the sum of its proper divisors (78014239).

231514977 is a wasteful number, since it uses less digits than its factorization.

231514977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210647.

The product of its digits is 52920, while the sum is 39.

The square root of 231514977 is about 15215.6162215009. The cubic root of 231514977 is about 614.0348639959.

The spelling of 231514977 in words is "two hundred thirty-one million, five hundred fourteen thousand, nine hundred seventy-seven".