15138036 has 24 divisors (see below), whose sum is σ = 39247040. Its totient is φ = 5045976.

The previous prime is 15138031. The next prime is 15138091. The reversal of 15138036 is 63083151.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15138031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69976 + ... + 70191.

Almost surely, 2^15138036 is an apocalyptic number.

It is an amenable number.

15138036 is an abundant number, since it is smaller than the sum of its proper divisors (24109004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15138036 is a wasteful number, since it uses less digits than its factorization.

15138036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140180 (or 140172 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 15138036 is about 3890.7629071944. The cubic root of 15138036 is about 247.3754010118.

The spelling of 15138036 in words is "fifteen million, one hundred thirty-eight thousand, thirty-six".