12915497 has 16 divisors (see below), whose sum is σ = 15638400. Its totient is φ = 10448784.

The previous prime is 12915493. The next prime is 12915557. The reversal of 12915497 is 79451921.

It is not a de Polignac number, because 12915497 - 2² = 12915493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12915497.

It is not an unprimeable number, because it can be changed into a prime (12915493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47879 + ... + 48147.

It is an arithmetic number, because the mean of its divisors is an integer number (977400).

Almost surely, 2^12915497 is an apocalyptic number.

It is an amenable number.

12915497 is a deficient number, since it is larger than the sum of its proper divisors (2722903).

12915497 is an frugal number, since it uses more digits than its factorization.

12915497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 295 counting only the distinct ones).

The product of its digits is 22680, while the sum is 38.

The square root of 12915497 is about 3593.8137124787. The cubic root of 12915497 is about 234.6228869327.

The spelling of 12915497 in words is "twelve million, nine hundred fifteen thousand, four hundred ninety-seven".