15304135220 has 24 divisors (see below), whose sum is σ = 35060383008. Its totient is φ = 5565140000.

The previous prime is 15304135201. The next prime is 15304135241. The reversal of 15304135220 is 2253140351.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15304135220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34781906 + ... + 34782345.

It is an arithmetic number, because the mean of its divisors is an integer number (1460849292).

Almost surely, 2^15304135220 is an apocalyptic number.

15304135220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15304135220 is an abundant number, since it is smaller than the sum of its proper divisors (19756247788).

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

15304135220 is a wasteful number, since it uses less digits than its factorization.

15304135220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69564271 (or 69564269 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 15304135220 its reverse (2253140351), we get a palindrome (17557275571).

The spelling of 15304135220 in words is "fifteen billion, three hundred four million, one hundred thirty-five thousand, two hundred twenty".