12918501 has 16 divisors (see below), whose sum is σ = 19195200. Its totient is φ = 8586864.

The previous prime is 12918497. The next prime is 12918509. The reversal of 12918501 is 10581921.

It is not a de Polignac number, because 12918501 - 2² = 12918497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12918509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14610 + ... + 15468.

It is an arithmetic number, because the mean of its divisors is an integer number (1199700).

Almost surely, 2^12918501 is an apocalyptic number.

It is an amenable number.

12918501 is a deficient number, since it is larger than the sum of its proper divisors (6276699).

12918501 is an equidigital number, since it uses as much as digits as its factorization.

12918501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 12918501 is about 3594.2316285960. The cubic root of 12918501 is about 234.6410757415.

The spelling of 12918501 in words is "twelve million, nine hundred eighteen thousand, five hundred one".