13518898 has 4 divisors (see below), whose sum is σ = 20278350. Its totient is φ = 6759448.

The previous prime is 13518887. The next prime is 13518977. The reversal of 13518898 is 89881531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89881531 = 47 ⋅1912373.

It can be written as a sum of positive squares in only one way, i.e., 12981609 + 537289 = 3603^2 + 733^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3379723 + ... + 3379726.

Almost surely, 2^13518898 is an apocalyptic number.

13518898 is a deficient number, since it is larger than the sum of its proper divisors (6759452).

13518898 is an equidigital number, since it uses as much as digits as its factorization.

13518898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6759451.

The product of its digits is 69120, while the sum is 43.

The square root of 13518898 is about 3676.8054068716. The cubic root of 13518898 is about 238.2212123065.

The spelling of 13518898 in words is "thirteen million, five hundred eighteen thousand, eight hundred ninety-eight".