13518998 has 4 divisors (see below), whose sum is σ = 20278500. Its totient is φ = 6759498.

The previous prime is 13518983. The next prime is 13519021. The reversal of 13518998 is 89981531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89981531 = 1033 ⋅87107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3379748 + ... + 3379751.

It is an arithmetic number, because the mean of its divisors is an integer number (5069625).

Almost surely, 2^13518998 is an apocalyptic number.

13518998 is a deficient number, since it is larger than the sum of its proper divisors (6759502).

13518998 is an equidigital number, since it uses as much as digits as its factorization.

13518998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6759501.

The product of its digits is 77760, while the sum is 44.

The square root of 13518998 is about 3676.8190056080. The cubic root of 13518998 is about 238.2217996833.

The spelling of 13518998 in words is "thirteen million, five hundred eighteen thousand, nine hundred ninety-eight".