13145552 has 20 divisors (see below), whose sum is σ = 29108256. Its totient is φ = 5633760.

The previous prime is 13145533. The next prime is 13145557. The reversal of 13145552 is 25554131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58574 + ... + 58797.

Almost surely, 2^13145552 is an apocalyptic number.

It is an amenable number.

13145552 is an abundant number, since it is smaller than the sum of its proper divisors (15962704).

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

13145552 is a wasteful number, since it uses less digits than its factorization.

13145552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117386 (or 117380 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 13145552 is about 3625.6795225171. The cubic root of 13145552 is about 236.0077561369.

Adding to 13145552 its reverse (25554131), we get a palindrome (38699683).

The spelling of 13145552 in words is "thirteen million, one hundred forty-five thousand, five hundred fifty-two".