12537479 has 2 divisors, whose sum is σ = 12537480. Its totient is φ = 12537478.

The previous prime is 12537451. The next prime is 12537493. The reversal of 12537479 is 97473521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12537479 - 2²⁰ = 11488903 is a 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 (12537419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268739 + 6268740.

It is an arithmetic number, because the mean of its divisors is an integer number (6268740).

Almost surely, 2^12537479 is an apocalyptic number.

12537479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12537479 is an equidigital number, since it uses as much as digits as its factorization.

12537479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 12537479 is about 3540.8302698661. The cubic root of 12537479 is about 232.3111597236.

The spelling of 12537479 in words is "twelve million, five hundred thirty-seven thousand, four hundred seventy-nine".