811460231 has 2 divisors, whose sum is σ = 811460232. Its totient is φ = 811460230.

The previous prime is 811460197. The next prime is 811460257. The reversal of 811460231 is 132064118.

It is an a-pointer prime, because the next prime (811460257) can be obtained adding 811460231 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-811460231 is a prime.

It is a super-2 number, since 2×811460231² = 1316935412989146722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 811460231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811460291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405730115 + 405730116.

It is an arithmetic number, because the mean of its divisors is an integer number (405730116).

Almost surely, 2^811460231 is an apocalyptic number.

811460231 is a deficient number, since it is larger than the sum of its proper divisors (1).

811460231 is an equidigital number, since it uses as much as digits as its factorization.

811460231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 811460231 is about 28486.1410338431. The cubic root of 811460231 is about 932.7295731966.

The spelling of 811460231 in words is "eight hundred eleven million, four hundred sixty thousand, two hundred thirty-one".