13147894525 has 12 divisors (see below), whose sum is σ = 16317160992. Its totient is φ = 10509430640.

The previous prime is 13147894511. The next prime is 13147894549. The reversal of 13147894525 is 52549874131.

It is a happy number.

It is not a de Polignac number, because 13147894525 - 2¹⁹ = 13147370237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191857 + ... + 251206.

It is an arithmetic number, because the mean of its divisors is an integer number (1359763416).

Almost surely, 2^13147894525 is an apocalyptic number.

It is an amenable number.

13147894525 is a deficient number, since it is larger than the sum of its proper divisors (3169266467).

13147894525 is a wasteful number, since it uses less digits than its factorization.

13147894525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444260 (or 444255 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The spelling of 13147894525 in words is "thirteen billion, one hundred forty-seven million, eight hundred ninety-four thousand, five hundred twenty-five".