13518897 has 16 divisors (see below), whose sum is σ = 20892672. Its totient is φ = 7615440.

The previous prime is 13518887. The next prime is 13518977. The reversal of 13518897 is 79881531.

It is not a de Polignac number, because 13518897 - 2²⁰ = 12470321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13518877) 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, 3043 + ... + 6024.

It is an arithmetic number, because the mean of its divisors is an integer number (1305792).

Almost surely, 2^13518897 is an apocalyptic number.

It is an amenable number.

13518897 is a deficient number, since it is larger than the sum of its proper divisors (7373775).

13518897 is an equidigital number, since it uses as much as digits as its factorization.

13518897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9148.

The product of its digits is 60480, while the sum is 42.

The square root of 13518897 is about 3676.8052708840. The cubic root of 13518897 is about 238.2212064327.

The spelling of 13518897 in words is "thirteen million, five hundred eighteen thousand, eight hundred ninety-seven".