13251315 has 72 divisors (see below), whose sum is σ = 27291600. Its totient is φ = 5470080.

The previous prime is 13251311. The next prime is 13251317. The reversal of 13251315 is 51315231.

13251315 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13251315 - 2² = 13251311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13251291 and 13251300.

It is not an unprimeable number, because it can be changed into a prime (13251311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 88861 + ... + 89009.

It is an arithmetic number, because the mean of its divisors is an integer number (379050).

Almost surely, 2^13251315 is an apocalyptic number.

13251315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13251315 is an abundant number, since it is smaller than the sum of its proper divisors (14040285).

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

13251315 is a wasteful number, since it uses less digits than its factorization.

13251315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 175 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 13251315 is about 3640.2355693004. The cubic root of 13251315 is about 236.6390024752.

Adding to 13251315 its reverse (51315231), we get a palindrome (64566546).

The spelling of 13251315 in words is "thirteen million, two hundred fifty-one thousand, three hundred fifteen".