13500387 has 6 divisors (see below), whose sum is σ = 19500572. Its totient is φ = 9000252.

The previous prime is 13500373. The next prime is 13500419. The reversal of 13500387 is 78300531.

It is not a de Polignac number, because 13500387 - 2⁷ = 13500259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13500387.

It is not an unprimeable number, because it can be changed into a prime (13500307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 750013 + ... + 750030.

Almost surely, 2^13500387 is an apocalyptic number.

13500387 is a deficient number, since it is larger than the sum of its proper divisors (6000185).

13500387 is a wasteful number, since it uses less digits than its factorization.

13500387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500049 (or 1500046 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 13500387 is about 3674.2872778268. The cubic root of 13500387 is about 238.1124330483.

The spelling of 13500387 in words is "thirteen million, five hundred thousand, three hundred eighty-seven".