13489015 has 4 divisors (see below), whose sum is σ = 16186824. Its totient is φ = 10791208.

The previous prime is 13488997. The next prime is 13489037. The reversal of 13489015 is 51098431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13489015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348897 + ... + 1348906.

It is an arithmetic number, because the mean of its divisors is an integer number (4046706).

Almost surely, 2^13489015 is an apocalyptic number.

13489015 is a deficient number, since it is larger than the sum of its proper divisors (2697809).

13489015 is an equidigital number, since it uses as much as digits as its factorization.

13489015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697808.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 13489015 is about 3672.7394407989. The cubic root of 13489015 is about 238.0455565642.

The spelling of 13489015 in words is "thirteen million, four hundred eighty-nine thousand, fifteen".