15013989 has 12 divisors (see below), whose sum is σ = 21723936. Its totient is φ = 9992232.

The previous prime is 15013969. The next prime is 15013993. The reversal of 15013989 is 98931051.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-15013989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15013939) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 6394 + ... + 8420.

It is an arithmetic number, because the mean of its divisors is an integer number (1810328).

Almost surely, 2^15013989 is an apocalyptic number.

It is an amenable number.

15013989 is a deficient number, since it is larger than the sum of its proper divisors (6709947).

15013989 is a wasteful number, since it uses less digits than its factorization.

15013989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856 (or 2853 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 15013989 is about 3874.7888974756. The cubic root of 15013989 is about 246.6978499251.

The spelling of 15013989 in words is "fifteen million, thirteen thousand, nine hundred eighty-nine".