12551479 has 2 divisors, whose sum is σ = 12551480. Its totient is φ = 12551478.

The previous prime is 12551447. The next prime is 12551501. The reversal of 12551479 is 97415521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12551479 - 2⁵ = 12551447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12551179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275739 + 6275740.

It is an arithmetic number, because the mean of its divisors is an integer number (6275740).

Almost surely, 2^12551479 is an apocalyptic number.

12551479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12551479 is an equidigital number, since it uses as much as digits as its factorization.

12551479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 12551479 is about 3542.8066557463. The cubic root of 12551479 is about 232.3975977921.

The spelling of 12551479 in words is "twelve million, five hundred fifty-one thousand, four hundred seventy-nine".