12533291 has 2 divisors, whose sum is σ = 12533292. Its totient is φ = 12533290.

The previous prime is 12533263. The next prime is 12533299. The reversal of 12533291 is 19233521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12533291 - 2²² = 8338987 is a prime.

It is equal to p₈₂₀₇₅₄ and since 12533291 and 820754 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12533291.

It is not a weakly prime, because it can be changed into another prime (12533299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6266645 + 6266646.

It is an arithmetic number, because the mean of its divisors is an integer number (6266646).

Almost surely, 2^12533291 is an apocalyptic number.

12533291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12533291 is an equidigital number, since it uses as much as digits as its factorization.

12533291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 26.

The square root of 12533291 is about 3540.2388337512. The cubic root of 12533291 is about 232.2852898900.

The spelling of 12533291 in words is "twelve million, five hundred thirty-three thousand, two hundred ninety-one".