13147745140 has 12 divisors (see below), whose sum is σ = 27610264836. Its totient is φ = 5259098048.

The previous prime is 13147745137. The next prime is 13147745179. The reversal of 13147745140 is 4154774131.

It can be written as a sum of positive squares in 2 ways, for example, as 10053270756 + 3094474384 = 100266^2 + 55628^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13147745140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328693609 + ... + 328693648.

It is an arithmetic number, because the mean of its divisors is an integer number (2300855403).

Almost surely, 2^13147745140 is an apocalyptic number.

13147745140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13147745140 is an abundant number, since it is smaller than the sum of its proper divisors (14462519696).

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

13147745140 is a wasteful number, since it uses less digits than its factorization.

13147745140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657387266 (or 657387264 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 13147745140 in words is "thirteen billion, one hundred forty-seven million, seven hundred forty-five thousand, one hundred forty".