13143625 has 32 divisors (see below), whose sum is σ = 18270720. Its totient is φ = 9438000.

The previous prime is 13143619. The next prime is 13143661. The reversal of 13143625 is 52634131.

It is not a de Polignac number, because 13143625 - 2³ = 13143617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 13143625.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166336 + ... + 166414.

It is an arithmetic number, because the mean of its divisors is an integer number (570960).

Almost surely, 2^13143625 is an apocalyptic number.

It is an amenable number.

13143625 is a deficient number, since it is larger than the sum of its proper divisors (5127095).

13143625 is an frugal number, since it uses more digits than its factorization.

13143625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 95 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 13143625 is about 3625.4137694889. The cubic root of 13143625 is about 235.9962234864.

Adding to 13143625 its reverse (52634131), we get a palindrome (65777756).

The spelling of 13143625 in words is "thirteen million, one hundred forty-three thousand, six hundred twenty-five".