231625413 has 12 divisors (see below), whose sum is σ = 346961888. Its totient is φ = 154416780.

The previous prime is 231625411. The next prime is 231625451. The reversal of 231625413 is 314526132.

231625413 is a `hidden beast` number, since 2 + 31 + 625 + 4 + 1 + 3 = 666.

It is not a de Polignac number, because 231625413 - 2¹ = 231625411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231625411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476353 + ... + 476838.

Almost surely, 2^231625413 is an apocalyptic number.

It is an amenable number.

231625413 is a deficient number, since it is larger than the sum of its proper divisors (115336475).

231625413 is an frugal number, since it uses more digits than its factorization.

231625413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953206 (or 953194 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 231625413 is about 15219.2448235778. The cubic root of 231625413 is about 614.1324829860.

The spelling of 231625413 in words is "two hundred thirty-one million, six hundred twenty-five thousand, four hundred thirteen".