231472499 has 2 divisors, whose sum is σ = 231472500. Its totient is φ = 231472498.

The previous prime is 231472487. The next prime is 231472537. The reversal of 231472499 is 994274132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231472499 - 2¹² = 231468403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231472099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115736249 + 115736250.

It is an arithmetic number, because the mean of its divisors is an integer number (115736250).

Almost surely, 2^231472499 is an apocalyptic number.

231472499 is a deficient number, since it is larger than the sum of its proper divisors (1).

231472499 is an equidigital number, since it uses as much as digits as its factorization.

231472499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 231472499 is about 15214.2202889271. The cubic root of 231472499 is about 613.9973076519.

The spelling of 231472499 in words is "two hundred thirty-one million, four hundred seventy-two thousand, four hundred ninety-nine".