12915459 has 24 divisors (see below), whose sum is σ = 20067840. Its totient is φ = 7978608.

The previous prime is 12915439. The next prime is 12915493. The reversal of 12915459 is 95451921.

It is not a de Polignac number, because 12915459 - 2¹² = 12911363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12915439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7234 + ... + 8840.

It is an arithmetic number, because the mean of its divisors is an integer number (836160).

Almost surely, 2^12915459 is an apocalyptic number.

12915459 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12915459 is a deficient number, since it is larger than the sum of its proper divisors (7152381).

12915459 is a wasteful number, since it uses less digits than its factorization.

12915459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679 (or 1676 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 12915459 is about 3593.8084256120. The cubic root of 12915459 is about 234.6226568298.

The spelling of 12915459 in words is "twelve million, nine hundred fifteen thousand, four hundred fifty-nine".