231172874 has 4 divisors (see below), whose sum is σ = 346759314. Its totient is φ = 115586436.

The previous prime is 231172873. The next prime is 231172889. The reversal of 231172874 is 478271132.

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

It can be written as a sum of positive squares in only one way, i.e., 140256649 + 90916225 = 11843^2 + 9535^2 .

It is not an unprimeable number, because it can be changed into a prime (231172873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57793217 + ... + 57793220.

Almost surely, 2^231172874 is an apocalyptic number.

231172874 is a deficient number, since it is larger than the sum of its proper divisors (115586440).

231172874 is a wasteful number, since it uses less digits than its factorization.

231172874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115586439.

The product of its digits is 18816, while the sum is 35.

The square root of 231172874 is about 15204.3702270104. The cubic root of 231172874 is about 613.7322677018.

The spelling of 231172874 in words is "two hundred thirty-one million, one hundred seventy-two thousand, eight hundred seventy-four".