13137428 has 24 divisors (see below), whose sum is σ = 24192000. Its totient is φ = 6233760.

The previous prime is 13137419. The next prime is 13137437. The reversal of 13137428 is 82473131.

It is an interprime number because it is at equal distance from previous prime (13137419) and next prime (13137437).

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13137428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5573 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (1008000).

Almost surely, 2^13137428 is an apocalyptic number.

It is an amenable number.

13137428 is a deficient number, since it is larger than the sum of its proper divisors (11054572).

13137428 is a wasteful number, since it uses less digits than its factorization.

13137428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087 (or 2085 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 13137428 is about 3624.5590076587. The cubic root of 13137428 is about 235.9591282280.

The spelling of 13137428 in words is "thirteen million, one hundred thirty-seven thousand, four hundred twenty-eight".