15564148 has 6 divisors (see below), whose sum is σ = 27237266. Its totient is φ = 7782072.

The previous prime is 15564127. The next prime is 15564149. The reversal of 15564148 is 84146551.

It can be written as a sum of positive squares in only one way, i.e., 13853284 + 1710864 = 3722^2 + 1308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15564149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945515 + ... + 1945522.

Almost surely, 2^15564148 is an apocalyptic number.

It is an amenable number.

15564148 is a deficient number, since it is larger than the sum of its proper divisors (11673118).

15564148 is a wasteful number, since it uses less digits than its factorization.

15564148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891041 (or 3891039 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 15564148 is about 3945.1423294984. The cubic root of 15564148 is about 249.6750337708.

The spelling of 15564148 in words is "fifteen million, five hundred sixty-four thousand, one hundred forty-eight".