15240004145 has 16 divisors (see below), whose sum is σ = 18604512000. Its totient is φ = 11981144448.

The previous prime is 15240004123. The next prime is 15240004151. The reversal of 15240004145 is 54140004251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15240004145 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1033736 + ... + 1048374.

It is an arithmetic number, because the mean of its divisors is an integer number (1162782000).

Almost surely, 2^15240004145 is an apocalyptic number.

It is an amenable number.

15240004145 is a deficient number, since it is larger than the sum of its proper divisors (3364507855).

15240004145 is a wasteful number, since it uses less digits than its factorization.

15240004145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18232.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 15240004145 its reverse (54140004251), we get a palindrome (69380008396).

The spelling of 15240004145 in words is "fifteen billion, two hundred forty million, four thousand, one hundred forty-five".