13145025 has 12 divisors (see below), whose sum is σ = 21733232. Its totient is φ = 7010640.

The previous prime is 13145021. The next prime is 13145053. The reversal of 13145025 is 52054131.

It is not a de Polignac number, because 13145025 - 2² = 13145021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13144992 and 13145010.

It is not an unprimeable number, because it can be changed into a prime (13145021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87559 + ... + 87708.

Almost surely, 2^13145025 is an apocalyptic number.

13145025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13145025 is a deficient number, since it is larger than the sum of its proper divisors (8588207).

13145025 is a wasteful number, since it uses less digits than its factorization.

13145025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175280 (or 175275 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13145025 is about 3625.6068457570. The cubic root of 13145025 is about 236.0046022755.

Adding to 13145025 its reverse (52054131), we get a palindrome (65199156).

The spelling of 13145025 in words is "thirteen million, one hundred forty-five thousand, twenty-five".