13152649225 has 9 divisors (see below), whose sum is σ = 16309996117. Its totient is φ = 10521660640.

The previous prime is 13152649201. The next prime is 13152649273. The reversal of 13152649225 is 52294625131.

The square root of 13152649225 is 114685.

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 2069613049 + 11083036176 = 45493^2 + 105276^2 .

It is not a de Polignac number, because 13152649225 - 2²¹ = 13150552073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 561957 + ... + 584893.

Almost surely, 2^13152649225 is an apocalyptic number.

13152649225 is the 114685-th square number.

13152649225 is the 57343-rd centered octagonal number.

It is an amenable number.

13152649225 is a deficient number, since it is larger than the sum of its proper divisors (3157346892).

13152649225 is an frugal number, since it uses more digits than its factorization.

13152649225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45884 (or 22942 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The spelling of 13152649225 in words is "thirteen billion, one hundred fifty-two million, six hundred forty-nine thousand, two hundred twenty-five".