12632591 has 2 divisors, whose sum is σ = 12632592. Its totient is φ = 12632590.

The previous prime is 12632569. The next prime is 12632597. The reversal of 12632591 is 19523621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12632591 - 2¹⁴ = 12616207 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12632597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6316295 + 6316296.

It is an arithmetic number, because the mean of its divisors is an integer number (6316296).

Almost surely, 2^12632591 is an apocalyptic number.

12632591 is a deficient number, since it is larger than the sum of its proper divisors (1).

12632591 is an equidigital number, since it uses as much as digits as its factorization.

12632591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 12632591 is about 3554.2356421599. The cubic root of 12632591 is about 232.8971345009.

The spelling of 12632591 in words is "twelve million, six hundred thirty-two thousand, five hundred ninety-one".