13243625 has 16 divisors (see below), whose sum is σ = 16707600. Its totient is φ = 10480000.

The previous prime is 13243621. The next prime is 13243631. The reversal of 13243625 is 52634231.

It can be written as a sum of positive squares in 8 ways, for example, as 73984 + 13169641 = 272^2 + 3629^2 .

It is not a de Polignac number, because 13243625 - 2² = 13243621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13243594 and 13243603.

It is not an unprimeable number, because it can be changed into a prime (13243621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12101 + ... + 13149.

It is an arithmetic number, because the mean of its divisors is an integer number (1044225).

Almost surely, 2^13243625 is an apocalyptic number.

It is an amenable number.

13243625 is a deficient number, since it is larger than the sum of its proper divisors (3463975).

13243625 is a wasteful number, since it uses less digits than its factorization.

13243625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1155 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 13243625 is about 3639.1791656911. The cubic root of 13243625 is about 236.5932181875.

Adding to 13243625 its reverse (52634231), we get a palindrome (65877856).

The spelling of 13243625 in words is "thirteen million, two hundred forty-three thousand, six hundred twenty-five".