231482278 has 4 divisors (see below), whose sum is σ = 347223420. Its totient is φ = 115741138.

The previous prime is 231482261. The next prime is 231482309. The reversal of 231482278 is 872284132.

231482278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57870568 + ... + 57870571.

It is an arithmetic number, because the mean of its divisors is an integer number (86805855).

Almost surely, 2^231482278 is an apocalyptic number.

231482278 is a deficient number, since it is larger than the sum of its proper divisors (115741142).

231482278 is a wasteful number, since it uses less digits than its factorization.

231482278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115741141.

The product of its digits is 43008, while the sum is 37.

The square root of 231482278 is about 15214.5416625017. The cubic root of 231482278 is about 614.0059540284.

The spelling of 231482278 in words is "two hundred thirty-one million, four hundred eighty-two thousand, two hundred seventy-eight".