15648136 has 16 divisors (see below), whose sum is σ = 33531840. Its totient is φ = 6706320.

The previous prime is 15648131. The next prime is 15648161. The reversal of 15648136 is 63184651.

It is a happy number.

15648136 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×15648136³ (a number of 23 digits) contains 333 as substring.

15648136 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (15648131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139660 + ... + 139771.

It is an arithmetic number, because the mean of its divisors is an integer number (2095740).

Almost surely, 2^15648136 is an apocalyptic number.

It is an amenable number.

15648136 is an abundant number, since it is smaller than the sum of its proper divisors (17883704).

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

15648136 is a wasteful number, since it uses less digits than its factorization.

15648136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279444 (or 279440 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 15648136 is about 3955.7724909302. The cubic root of 15648136 is about 250.1233311477.

The spelling of 15648136 in words is "fifteen million, six hundred forty-eight thousand, one hundred thirty-six".