15664148 has 6 divisors (see below), whose sum is σ = 27412266. Its totient is φ = 7832072.

The previous prime is 15664141. The next prime is 15664153. The reversal of 15664148 is 84146651.

It can be written as a sum of positive squares in only one way, i.e., 10876804 + 4787344 = 3298^2 + 2188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15664141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1958015 + ... + 1958022.

It is an arithmetic number, because the mean of its divisors is an integer number (4568711).

Almost surely, 2^15664148 is an apocalyptic number.

It is an amenable number.

15664148 is a deficient number, since it is larger than the sum of its proper divisors (11748118).

15664148 is a wasteful number, since it uses less digits than its factorization.

15664148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916041 (or 3916039 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 15664148 is about 3957.7958512283. The cubic root of 15664148 is about 250.2086152037.

The spelling of 15664148 in words is "fifteen million, six hundred sixty-four thousand, one hundred forty-eight".