12152615 has 4 divisors (see below), whose sum is σ = 14583144. Its totient is φ = 9722088.

The previous prime is 12152599. The next prime is 12152627. The reversal of 12152615 is 51625121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12152615 - 2⁴ = 12152599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215257 + ... + 1215266.

It is an arithmetic number, because the mean of its divisors is an integer number (3645786).

Almost surely, 2^12152615 is an apocalyptic number.

12152615 is a deficient number, since it is larger than the sum of its proper divisors (2430529).

12152615 is an equidigital number, since it uses as much as digits as its factorization.

12152615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430528.

The product of its digits is 600, while the sum is 23.

The square root of 12152615 is about 3486.0600970150. The cubic root of 12152615 is about 229.9093215322.

Adding to 12152615 its reverse (51625121), we get a palindrome (63777736).

The spelling of 12152615 in words is "twelve million, one hundred fifty-two thousand, six hundred fifteen".