13145604 has 24 divisors (see below), whose sum is σ = 32007360. Its totient is φ = 4191264.

The previous prime is 13145603. The next prime is 13145609. The reversal of 13145604 is 40654131.

It is not an unprimeable number, because it can be changed into a prime (13145603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23539 + ... + 24090.

It is an arithmetic number, because the mean of its divisors is an integer number (1333640).

Almost surely, 2^13145604 is an apocalyptic number.

It is an amenable number.

13145604 is an abundant number, since it is smaller than the sum of its proper divisors (18861756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13145604 is a wasteful number, since it uses less digits than its factorization.

13145604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47659 (or 47657 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 13145604 is about 3625.6866935796. The cubic root of 13145604 is about 236.0080673293.

Adding to 13145604 its sum of digits (24), we get a triangular number (13145628 = T₅₁₂₇).

Adding to 13145604 its reverse (40654131), we get a palindrome (53799735).

The spelling of 13145604 in words is "thirteen million, one hundred forty-five thousand, six hundred four".