80749231 has 2 divisors, whose sum is σ = 80749232. Its totient is φ = 80749230.

The previous prime is 80749217. The next prime is 80749237. The reversal of 80749231 is 13294708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80749231 - 2⁵ = 80749199 is a prime.

It is a super-2 number, since 2×80749231² = 13040876614182722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80749237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40374615 + 40374616.

It is an arithmetic number, because the mean of its divisors is an integer number (40374616).

Almost surely, 2^80749231 is an apocalyptic number.

80749231 is a deficient number, since it is larger than the sum of its proper divisors (1).

80749231 is an equidigital number, since it uses as much as digits as its factorization.

80749231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 80749231 is about 8986.0575893993. The cubic root of 80749231 is about 432.2279015116.

The spelling of 80749231 in words is "eighty million, seven hundred forty-nine thousand, two hundred thirty-one".