13121152 has 32 divisors (see below), whose sum is σ = 28519200. Its totient is φ = 5963520.

The previous prime is 13121117. The next prime is 13121159. The reversal of 13121152 is 25112131.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (13121159) 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, 3252 + ... + 6067.

It is an arithmetic number, because the mean of its divisors is an integer number (891225).

Almost surely, 2^13121152 is an apocalyptic number.

It is an amenable number.

13121152 is an abundant number, since it is smaller than the sum of its proper divisors (15398048).

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

13121152 is an equidigital number, since it uses as much as digits as its factorization.

13121152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9344 (or 9332 counting only the distinct ones).

The product of its digits is 60, while the sum is 16.

The square root of 13121152 is about 3622.3130731620. The cubic root of 13121152 is about 235.8616444624.

Adding to 13121152 its reverse (25112131), we get a palindrome (38233283).

The spelling of 13121152 in words is "thirteen million, one hundred twenty-one thousand, one hundred fifty-two".