13145628 has 24 divisors (see below), whose sum is σ = 30738960. Its totient is φ = 4372480.

The previous prime is 13145617. The next prime is 13145651. The reversal of 13145628 is 82654131.

13145628 is a nontrivial binomial coefficient, being equal to C(5128, 2).

It is a junction number, because it is equal to n+sod(n) for n = 13145595 and 13145604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6838 + ... + 8546.

It is an arithmetic number, because the mean of its divisors is an integer number (1280790).

Almost surely, 2^13145628 is an apocalyptic number.

13145628 is the 5127-th triangular number and also the 2564-th hexagonal number.

It is an amenable number.

13145628 is an abundant number, since it is smaller than the sum of its proper divisors (17593332).

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

13145628 is a wasteful number, since it uses less digits than its factorization.

13145628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357 (or 2355 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 13145628 is about 3625.6900032959. The cubic root of 13145628 is about 236.0082109563.

Adding to 13145628 its reverse (82654131), we get a palindrome (95799759).

The spelling of 13145628 in words is "thirteen million, one hundred forty-five thousand, six hundred twenty-eight".