231625630 has 32 divisors (see below), whose sum is σ = 423792000. Its totient is φ = 91133952.

The previous prime is 231625627. The next prime is 231625657. The reversal of 231625630 is 36526132.

231625630 = T₉₆₂₃ + T₉₆₂₄ + ... + T₉₆₂₇.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354384 + ... + 355036.

It is an arithmetic number, because the mean of its divisors is an integer number (13243500).

Almost surely, 2^231625630 is an apocalyptic number.

231625630 is a deficient number, since it is larger than the sum of its proper divisors (192166370).

231625630 is a wasteful number, since it uses less digits than its factorization.

231625630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 231625630 is about 15219.2519527078. The cubic root of 231625630 is about 614.1326747708.

The spelling of 231625630 in words is "two hundred thirty-one million, six hundred twenty-five thousand, six hundred thirty".