12536291 has 2 divisors, whose sum is σ = 12536292. Its totient is φ = 12536290.

The previous prime is 12536287. The next prime is 12536299. The reversal of 12536291 is 19263521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12536291 - 2² = 12536287 is a prime.

It is not a weakly prime, because it can be changed into another prime (12536299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268145 + 6268146.

It is an arithmetic number, because the mean of its divisors is an integer number (6268146).

Almost surely, 2^12536291 is an apocalyptic number.

12536291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12536291 is an equidigital number, since it uses as much as digits as its factorization.

12536291 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 12536291 is about 3540.6625086274. The cubic root of 12536291 is about 232.3038218748.

The spelling of 12536291 in words is "twelve million, five hundred thirty-six thousand, two hundred ninety-one".