15432515145 has 16 divisors (see below), whose sum is σ = 27435582720. Its totient is φ = 8230674672.

The previous prime is 15432515117. The next prime is 15432515227. The reversal of 15432515145 is 54151523451.

15432515145 is a `hidden beast` number, since 1 + 543 + 25 + 1 + 51 + 45 = 666.

It is not a de Polignac number, because 15432515145 - 2¹⁰ = 15432514121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57157329 + ... + 57157598.

It is an arithmetic number, because the mean of its divisors is an integer number (1714723920).

Almost surely, 2^15432515145 is an apocalyptic number.

15432515145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15432515145 is a deficient number, since it is larger than the sum of its proper divisors (12003067575).

15432515145 is a wasteful number, since it uses less digits than its factorization.

15432515145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114314941 (or 114314935 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 15432515145 in words is "fifteen billion, four hundred thirty-two million, five hundred fifteen thousand, one hundred forty-five".