13505152 has 16 divisors (see below), whose sum is σ = 26905050. Its totient is φ = 6752512.

The previous prime is 13505147. The next prime is 13505153. The reversal of 13505152 is 25150531.

It can be written as a sum of positive squares in only one way, i.e., 10601536 + 2903616 = 3256^2 + 1704^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13505153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52627 + ... + 52882.

Almost surely, 2^13505152 is an apocalyptic number.

It is an amenable number.

13505152 is a deficient number, since it is larger than the sum of its proper divisors (13399898).

13505152 is an equidigital number, since it uses as much as digits as its factorization.

13505152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105523 (or 105511 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 13505152 is about 3674.9356456950. The cubic root of 13505152 is about 238.1404439066.

Adding to 13505152 its reverse (25150531), we get a palindrome (38655683).

The spelling of 13505152 in words is "thirteen million, five hundred five thousand, one hundred fifty-two".