231334425 has 72 divisors (see below), whose sum is σ = 476636160. Its totient is φ = 105062400.

The previous prime is 231334417. The next prime is 231334429. The reversal of 231334425 is 524433132.

231334425 is a `hidden beast` number, since 2 + 313 + 344 + 2 + 5 = 666.

231334425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231334425 - 2³ = 231334417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231334429) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 300441 + ... + 301209.

Almost surely, 2^231334425 is an apocalyptic number.

231334425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231334425 is an abundant number, since it is smaller than the sum of its proper divisors (245301735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231334425 is a wasteful number, since it uses less digits than its factorization.

231334425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 975 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 231334425 is about 15209.6819493374. The cubic root of 231334425 is about 613.8751996596.

Adding to 231334425 its reverse (524433132), we get a palindrome (755767557).

The spelling of 231334425 in words is "two hundred thirty-one million, three hundred thirty-four thousand, four hundred twenty-five".