15120353142 has 12 divisors (see below), whose sum is σ = 32760765180. Its totient is φ = 5040117708.

The previous prime is 15120353099. The next prime is 15120353161. The reversal of 15120353142 is 24135302151.

15120353142 is a `hidden beast` number, since 1 + 5 + 120 + 3 + 531 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 420009792 + ... + 420009827.

It is an arithmetic number, because the mean of its divisors is an integer number (2730063765).

Almost surely, 2^15120353142 is an apocalyptic number.

15120353142 is an abundant number, since it is smaller than the sum of its proper divisors (17640412038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15120353142 is a wasteful number, since it uses less digits than its factorization.

15120353142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840019627 (or 840019624 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 15120353142 its reverse (24135302151), we get a palindrome (39255655293).

The spelling of 15120353142 in words is "fifteen billion, one hundred twenty million, three hundred fifty-three thousand, one hundred forty-two".