15442532115 has 16 divisors (see below), whose sum is σ = 24735314688. Its totient is φ = 8226929376.

The previous prime is 15442532113. The next prime is 15442532141. The reversal of 15442532115 is 51123524451.

15442532115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15442532115 - 2¹ = 15442532113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15442532113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553927 + ... + 581136.

It is an arithmetic number, because the mean of its divisors is an integer number (1545957168).

Almost surely, 2^15442532115 is an apocalyptic number.

15442532115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15442532115 is a deficient number, since it is larger than the sum of its proper divisors (9292782573).

15442532115 is a wasteful number, since it uses less digits than its factorization.

15442532115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135978.

The product of its digits is 24000, while the sum is 33.

The spelling of 15442532115 in words is "fifteen billion, four hundred forty-two million, five hundred thirty-two thousand, one hundred fifteen".