231426207 has 16 divisors (see below), whose sum is σ = 357761280. Its totient is φ = 147575736.

The previous prime is 231426203. The next prime is 231426227. The reversal of 231426207 is 702624132.

231426207 is a `hidden beast` number, since 2 + 31 + 4 + 2 + 620 + 7 = 666.

It is not a de Polignac number, because 231426207 - 2² = 231426203 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231426203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185713 + ... + 186954.

It is an arithmetic number, because the mean of its divisors is an integer number (22360080).

Almost surely, 2^231426207 is an apocalyptic number.

231426207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

231426207 is a deficient number, since it is larger than the sum of its proper divisors (126335073).

231426207 is a wasteful number, since it uses less digits than its factorization.

231426207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372699 (or 372693 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 231426207 is about 15212.6988729811. The cubic root of 231426207 is about 613.9563739795.

The spelling of 231426207 in words is "two hundred thirty-one million, four hundred twenty-six thousand, two hundred seven".