12501479 has 2 divisors, whose sum is σ = 12501480. Its totient is φ = 12501478.

The previous prime is 12501473. The next prime is 12501491. The reversal of 12501479 is 97410521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12501479 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 (12501473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250739 + 6250740.

It is an arithmetic number, because the mean of its divisors is an integer number (6250740).

Almost surely, 2^12501479 is an apocalyptic number.

12501479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12501479 is an equidigital number, since it uses as much as digits as its factorization.

12501479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 12501479 is about 3535.7430619320. The cubic root of 12501479 is about 232.0885945328.

The spelling of 12501479 in words is "twelve million, five hundred one thousand, four hundred seventy-nine".