13645125 has 64 divisors (see below), whose sum is σ = 27256320. Its totient is φ = 6696000.

The previous prime is 13645057. The next prime is 13645127. The reversal of 13645125 is 52154631.

13645125 is a `hidden beast` number, since 1 + 3 + 645 + 12 + 5 = 666.

It is not a de Polignac number, because 13645125 - 2⁷ = 13644997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13645127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43720 + ... + 44030.

It is an arithmetic number, because the mean of its divisors is an integer number (425880).

Almost surely, 2^13645125 is an apocalyptic number.

13645125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13645125 is a deficient number, since it is larger than the sum of its proper divisors (13611195).

13645125 is a wasteful number, since it uses less digits than its factorization.

13645125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 332 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 13645125 is about 3693.9308331370. The cubic root of 13645125 is about 238.9603465897.

Adding to 13645125 its reverse (52154631), we get a palindrome (65799756).

The spelling of 13645125 in words is "thirteen million, six hundred forty-five thousand, one hundred twenty-five".