13245515 has 8 divisors (see below), whose sum is σ = 15948240. Its totient is φ = 10560672.

The previous prime is 13245511. The next prime is 13245517. The reversal of 13245515 is 51554231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13245515 - 2² = 13245511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13245511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2780 + ... + 5849.

It is an arithmetic number, because the mean of its divisors is an integer number (1993530).

Almost surely, 2^13245515 is an apocalyptic number.

13245515 is a deficient number, since it is larger than the sum of its proper divisors (2702725).

13245515 is an equidigital number, since it uses as much as digits as its factorization.

13245515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8941.

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

The square root of 13245515 is about 3639.4388303693. The cubic root of 13245515 is about 236.6044724051.

Adding to 13245515 its reverse (51554231), we get a palindrome (64799746).

The spelling of 13245515 in words is "thirteen million, two hundred forty-five thousand, five hundred fifteen".