231086459 has 2 divisors, whose sum is σ = 231086460. Its totient is φ = 231086458.

The previous prime is 231086447. The next prime is 231086467. The reversal of 231086459 is 954680132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231086459 - 2²⁴ = 214309243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231080459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115543229 + 115543230.

It is an arithmetic number, because the mean of its divisors is an integer number (115543230).

Almost surely, 2^231086459 is an apocalyptic number.

231086459 is a deficient number, since it is larger than the sum of its proper divisors (1).

231086459 is an equidigital number, since it uses as much as digits as its factorization.

231086459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 231086459 is about 15201.5281797588. The cubic root of 231086459 is about 613.6557848475.

The spelling of 231086459 in words is "two hundred thirty-one million, eighty-six thousand, four hundred fifty-nine".