13507320841 has 9 divisors (see below), whose sum is σ = 15713544141. Its totient is φ = 11577006252.

The previous prime is 13507320823. The next prime is 13507320857. The reversal of 13507320841 is 14802370531.

The square root of 13507320841 is 116221.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 13507320841 - 2⁹ = 13507320329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13507320797 and 13507320806.

It is not an unprimeable number, because it can be changed into a prime (13507320821) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 805246 + ... + 821848.

It is an arithmetic number, because the mean of its divisors is an integer number (1745949349).

Almost surely, 2^13507320841 is an apocalyptic number.

13507320841 is the 116221-st square number.

13507320841 is the 58111-st centered octagonal number.

It is an amenable number.

13507320841 is a deficient number, since it is larger than the sum of its proper divisors (2206223300).

13507320841 is an frugal number, since it uses more digits than its factorization.

13507320841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33220 (or 16610 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 13507320841 in words is "thirteen billion, five hundred seven million, three hundred twenty thousand, eight hundred forty-one".