231407955 has 16 divisors (see below), whose sum is σ = 411392160. Its totient is φ = 123417504.

The previous prime is 231407951. The next prime is 231407987. The reversal of 231407955 is 559704132.

It is not a de Polignac number, because 231407955 - 2² = 231407951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231407951) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 856932 + ... + 857201.

It is an arithmetic number, because the mean of its divisors is an integer number (25712010).

Almost surely, 2^231407955 is an apocalyptic number.

231407955 is a deficient number, since it is larger than the sum of its proper divisors (179984205).

231407955 is a wasteful number, since it uses less digits than its factorization.

231407955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714147 (or 1714141 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 231407955 is about 15212.0989675981. The cubic root of 231407955 is about 613.9402331594.

The spelling of 231407955 in words is "two hundred thirty-one million, four hundred seven thousand, nine hundred fifty-five".