15045837321 has 8 divisors (see below), whose sum is σ = 20708249344. Its totient is φ = 9706991760.

The previous prime is 15045837311. The next prime is 15045837329. The reversal of 15045837321 is 12373854051.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15045837321 - 2⁹ = 15045836809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15045837321.

It is not an unprimeable number, because it can be changed into a prime (15045837329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80891506 + ... + 80891691.

It is an arithmetic number, because the mean of its divisors is an integer number (2588531168).

Almost surely, 2^15045837321 is an apocalyptic number.

It is an amenable number.

15045837321 is a deficient number, since it is larger than the sum of its proper divisors (5662412023).

15045837321 is a wasteful number, since it uses less digits than its factorization.

15045837321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161783231.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 15045837321 in words is "fifteen billion, forty-five million, eight hundred thirty-seven thousand, three hundred twenty-one".