13521870140 has 12 divisors (see below), whose sum is σ = 28395927336. Its totient is φ = 5408748048.

The previous prime is 13521870083. The next prime is 13521870181. The reversal of 13521870140 is 4107812531.

It is a junction number, because it is equal to n+sod(n) for n = 13521870097 and 13521870106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338046734 + ... + 338046773.

It is an arithmetic number, because the mean of its divisors is an integer number (2366327278).

Almost surely, 2^13521870140 is an apocalyptic number.

13521870140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13521870140 is an abundant number, since it is smaller than the sum of its proper divisors (14874057196).

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

13521870140 is a wasteful number, since it uses less digits than its factorization.

13521870140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676093516 (or 676093514 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 13521870140 in words is "thirteen billion, five hundred twenty-one million, eight hundred seventy thousand, one hundred forty".