231860159 has 2 divisors, whose sum is σ = 231860160. Its totient is φ = 231860158.

The previous prime is 231860149. The next prime is 231860177. The reversal of 231860159 is 951068132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231860159 - 2⁴ = 231860143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231860149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115930079 + 115930080.

It is an arithmetic number, because the mean of its divisors is an integer number (115930080).

Almost surely, 2^231860159 is an apocalyptic number.

231860159 is a deficient number, since it is larger than the sum of its proper divisors (1).

231860159 is an equidigital number, since it uses as much as digits as its factorization.

231860159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 231860159 is about 15226.9550140532. The cubic root of 231860159 is about 614.3398817438.

The spelling of 231860159 in words is "two hundred thirty-one million, eight hundred sixty thousand, one hundred fifty-nine".