3615138 has 16 divisors (see below), whose sum is σ = 8033760. Its totient is φ = 1205028.

The previous prime is 3615133. The next prime is 3615167. The reversal of 3615138 is 8315163.

3615138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3615133) 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 7 ways as a sum of consecutive naturals, for example, 33420 + ... + 33527.

It is an arithmetic number, because the mean of its divisors is an integer number (502110).

Almost surely, 2^3615138 is an apocalyptic number.

3615138 is an abundant number, since it is smaller than the sum of its proper divisors (4418622).

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

3615138 is a wasteful number, since it uses less digits than its factorization.

3615138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66958 (or 66952 counting only the distinct ones).

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

The square root of 3615138 is about 1901.3516245029. The cubic root of 3615138 is about 153.4764081488.

The spelling of 3615138 in words is "three million, six hundred fifteen thousand, one hundred thirty-eight".