15780152 has 16 divisors (see below), whose sum is σ = 29667600. Its totient is φ = 7868800.

The previous prime is 15780133. The next prime is 15780157. The reversal of 15780152 is 25108751.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15780157) 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 3 ways as a sum of consecutive naturals, for example, 749 + ... + 5667.

It is an arithmetic number, because the mean of its divisors is an integer number (1854225).

Almost surely, 2^15780152 is an apocalyptic number.

It is an amenable number.

15780152 is a deficient number, since it is larger than the sum of its proper divisors (13887448).

15780152 is a wasteful number, since it uses less digits than its factorization.

15780152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326 (or 5322 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 15780152 is about 3972.4239451499. The cubic root of 15780152 is about 250.8247534681.

The spelling of 15780152 in words is "fifteen million, seven hundred eighty thousand, one hundred fifty-two".