12918495 has 16 divisors (see below), whose sum is σ = 20718432. Its totient is φ = 6873600.

The previous prime is 12918491. The next prime is 12918497. The reversal of 12918495 is 59481921.

It is not a de Polignac number, because 12918495 - 2² = 12918491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12918491) 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, 8299 + ... + 9731.

It is an arithmetic number, because the mean of its divisors is an integer number (1294902).

Almost surely, 2^12918495 is an apocalyptic number.

12918495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12918495 is a deficient number, since it is larger than the sum of its proper divisors (7799937).

12918495 is a wasteful number, since it uses less digits than its factorization.

12918495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042.

The product of its digits is 25920, while the sum is 39.

The square root of 12918495 is about 3594.2307939252. The cubic root of 12918495 is about 234.6410394151.

The spelling of 12918495 in words is "twelve million, nine hundred eighteen thousand, four hundred ninety-five".