231908425 has 36 divisors (see below), whose sum is σ = 349102656. Its totient is φ = 152090400.

The previous prime is 231908419. The next prime is 231908449. The reversal of 231908425 is 524809132.

It is not a de Polignac number, because 231908425 - 2⁷ = 231908297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24060 + ... + 32290.

It is an arithmetic number, because the mean of its divisors is an integer number (9697296).

Almost surely, 2^231908425 is an apocalyptic number.

231908425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231908425 is a deficient number, since it is larger than the sum of its proper divisors (117194231).

231908425 is a wasteful number, since it uses less digits than its factorization.

231908425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278 (or 8266 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 231908425 is about 15228.5398183805. The cubic root of 231908425 is about 614.3825075397.

The spelling of 231908425 in words is "two hundred thirty-one million, nine hundred eight thousand, four hundred twenty-five".