13140953956 has 27 divisors (see below), whose sum is σ = 24907368171. Its totient is φ = 6063680064.

The previous prime is 13140953951. The next prime is 13140953963. The reversal of 13140953956 is 65935904131.

The square root of 13140953956 is 114634.

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

It can be written as a sum of positive squares in 4 ways, for example, as 8040708900 + 5100245056 = 89670^2 + 71416^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13140953951) 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, 2978280 + ... + 2982688.

Almost surely, 2^13140953956 is an apocalyptic number.

13140953956 is the 114634-th square number.

It is an amenable number.

13140953956 is a deficient number, since it is larger than the sum of its proper divisors (11766414215).

13140953956 is an frugal number, since it uses more digits than its factorization.

13140953956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8848 (or 4424 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 13140953956 in words is "thirteen billion, one hundred forty million, nine hundred fifty-three thousand, nine hundred fifty-six".