231678655 has 32 divisors (see below), whose sum is σ = 322560000. Its totient is φ = 158336640.

The previous prime is 231678653. The next prime is 231678673. The reversal of 231678655 is 556876132.

It is not a de Polignac number, because 231678655 - 2¹ = 231678653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231678653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43846 + ... + 48844.

It is an arithmetic number, because the mean of its divisors is an integer number (10080000).

Almost surely, 2^231678655 is an apocalyptic number.

231678655 is a deficient number, since it is larger than the sum of its proper divisors (90881345).

231678655 is a wasteful number, since it uses less digits than its factorization.

231678655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071.

The product of its digits is 302400, while the sum is 43.

The square root of 231678655 is about 15220.9938900191. The cubic root of 231678655 is about 614.1795347268.

The spelling of 231678655 in words is "two hundred thirty-one million, six hundred seventy-eight thousand, six hundred fifty-five".