15200120132 has 6 divisors (see below), whose sum is σ = 26600210238. Its totient is φ = 7600060064.

The previous prime is 15200120123. The next prime is 15200120149. The reversal of 15200120132 is 23102100251.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14739416836 + 460703296 = 121406^2 + 21464^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15200120132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1900015013 + ... + 1900015020.

It is an arithmetic number, because the mean of its divisors is an integer number (4433368373).

Almost surely, 2^15200120132 is an apocalyptic number.

It is an amenable number.

15200120132 is a deficient number, since it is larger than the sum of its proper divisors (11400090106).

15200120132 is a wasteful number, since it uses less digits than its factorization.

15200120132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800030037 (or 3800030035 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 15200120132 its reverse (23102100251), we get a palindrome (38302220383).

The spelling of 15200120132 in words is "fifteen billion, two hundred million, one hundred twenty thousand, one hundred thirty-two".