231417245 has 24 divisors (see below), whose sum is σ = 303260760. Its totient is φ = 169303680.

The previous prime is 231417223. The next prime is 231417253. The reversal of 231417245 is 542714132.

It can be written as a sum of positive squares in 4 ways, for example, as 56040196 + 175377049 = 7486^2 + 13243^2 .

It is not a de Polignac number, because 231417245 - 2⁶ = 231417181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50135 + ... + 54555.

It is an arithmetic number, because the mean of its divisors is an integer number (12635865).

Almost surely, 2^231417245 is an apocalyptic number.

It is an amenable number.

231417245 is a deficient number, since it is larger than the sum of its proper divisors (71843515).

231417245 is a wasteful number, since it uses less digits than its factorization.

231417245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493 (or 4474 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 231417245 is about 15212.4043135857. The cubic root of 231417245 is about 613.9484487059.

The spelling of 231417245 in words is "two hundred thirty-one million, four hundred seventeen thousand, two hundred forty-five".