231859207 has 2 divisors, whose sum is σ = 231859208. Its totient is φ = 231859206.

The previous prime is 231859181. The next prime is 231859213. The reversal of 231859207 is 702958132.

231859207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231859207 - 2¹¹ = 231857159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231859247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115929603 + 115929604.

It is an arithmetic number, because the mean of its divisors is an integer number (115929604).

Almost surely, 2^231859207 is an apocalyptic number.

231859207 is a deficient number, since it is larger than the sum of its proper divisors (1).

231859207 is an equidigital number, since it uses as much as digits as its factorization.

231859207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 231859207 is about 15226.9237536674. The cubic root of 231859207 is about 614.3390409318.

The spelling of 231859207 in words is "two hundred thirty-one million, eight hundred fifty-nine thousand, two hundred seven".