15305045140 has 72 divisors (see below), whose sum is σ = 40786980192. Its totient is φ = 4770400320.

The previous prime is 15305045057. The next prime is 15305045177. The reversal of 15305045140 is 4154050351.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 15305045099 and 15305045108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 699102 + ... + 720661.

It is an arithmetic number, because the mean of its divisors is an integer number (566485836).

Almost surely, 2^15305045140 is an apocalyptic number.

15305045140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15305045140 is an abundant number, since it is smaller than the sum of its proper divisors (25481935052).

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

15305045140 is a wasteful number, since it uses less digits than its factorization.

15305045140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419797 (or 1419788 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 15305045140 its reverse (4154050351), we get a palindrome (19459095491).

The spelling of 15305045140 in words is "fifteen billion, three hundred five million, forty-five thousand, one hundred forty".