12518949 has 8 divisors (see below), whose sum is σ = 16722720. Its totient is φ = 8330576.

The previous prime is 12518939. The next prime is 12518959. The reversal of 12518949 is 94981521.

12518949 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12518939) and next prime (12518959).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12518949 - 2¹⁷ = 12387877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12518939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1794 + ... + 5315.

It is an arithmetic number, because the mean of its divisors is an integer number (2090340).

Almost surely, 2^12518949 is an apocalyptic number.

It is an amenable number.

12518949 is a deficient number, since it is larger than the sum of its proper divisors (4203771).

12518949 is an equidigital number, since it uses as much as digits as its factorization.

12518949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699.

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

The square root of 12518949 is about 3538.2126843931. The cubic root of 12518949 is about 232.1966537616.

The spelling of 12518949 in words is "twelve million, five hundred eighteen thousand, nine hundred forty-nine".