15212135260 has 72 divisors (see below), whose sum is σ = 37862354880. Its totient is φ = 5117164416.

The previous prime is 15212135251. The next prime is 15212135297. The reversal of 15212135260 is 6253121251.

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

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, 94500 + ... + 198379.

It is an arithmetic number, because the mean of its divisors is an integer number (525866040).

Almost surely, 2^15212135260 is an apocalyptic number.

15212135260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15212135260 is an abundant number, since it is smaller than the sum of its proper divisors (22650219620).

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

15212135260 is a wasteful number, since it uses less digits than its factorization.

15212135260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292955 (or 292946 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 15212135260 in words is "fifteen billion, two hundred twelve million, one hundred thirty-five thousand, two hundred sixty".