15540152 has 8 divisors (see below), whose sum is σ = 29137800. Its totient is φ = 7770072.

The previous prime is 15540149. The next prime is 15540179. The reversal of 15540152 is 25104551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971252 + ... + 971267.

It is an arithmetic number, because the mean of its divisors is an integer number (3642225).

Almost surely, 2^15540152 is an apocalyptic number.

It is an amenable number.

15540152 is a deficient number, since it is larger than the sum of its proper divisors (13597648).

15540152 is a wasteful number, since it uses less digits than its factorization.

15540152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942525 (or 1942521 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 15540152 is about 3942.0999479973. The cubic root of 15540152 is about 249.5466557462.

The spelling of 15540152 in words is "fifteen million, five hundred forty thousand, one hundred fifty-two".