12551291 has 2 divisors, whose sum is σ = 12551292. Its totient is φ = 12551290.

The previous prime is 12551269. The next prime is 12551317. The reversal of 12551291 is 19215521.

It is an a-pointer prime, because the next prime (12551317) can be obtained adding 12551291 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12551291 is a prime.

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 12551291.

It is not a weakly prime, because it can be changed into another prime (12557291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275645 + 6275646.

It is an arithmetic number, because the mean of its divisors is an integer number (6275646).

Almost surely, 2^12551291 is an apocalyptic number.

12551291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12551291 is an equidigital number, since it uses as much as digits as its factorization.

12551291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 26.

The square root of 12551291 is about 3542.7801230107. The cubic root of 12551291 is about 232.3964374782.

The spelling of 12551291 in words is "twelve million, five hundred fifty-one thousand, two hundred ninety-one".