13242715929 has 27 divisors (see below), whose sum is σ = 19390697599. Its totient is φ = 8709027360.

The previous prime is 13242715921. The next prime is 13242715939. The reversal of 13242715929 is 92951724231.

The square root of 13242715929 is 115077.

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

13242715929 is a `hidden beast` number, since 1 + 32 + 4 + 27 + 1 + 592 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2542882329 + 10699833600 = 50427^2 + 103440^2 .

It is not a de Polignac number, because 13242715929 - 2³ = 13242715921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13242715921) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 30725344 + ... + 30725774.

Almost surely, 2^13242715929 is an apocalyptic number.

13242715929 is the 115077-th square number.

13242715929 is the 57539-th centered octagonal number.

It is an amenable number.

13242715929 is a deficient number, since it is larger than the sum of its proper divisors (6147981670).

13242715929 is an frugal number, since it uses more digits than its factorization.

13242715929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 523 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 13242715929 in words is "thirteen billion, two hundred forty-two million, seven hundred fifteen thousand, nine hundred twenty-nine".