12152505 has 16 divisors (see below), whose sum is σ = 19664640. Its totient is φ = 6407808.

The previous prime is 12152449. The next prime is 12152513. The reversal of 12152505 is 50525121.

It is not a de Polignac number, because 12152505 - 2¹³ = 12144313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3217 + ... + 5886.

It is an arithmetic number, because the mean of its divisors is an integer number (1229040).

Almost surely, 2^12152505 is an apocalyptic number.

12152505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12152505 is a deficient number, since it is larger than the sum of its proper divisors (7512135).

12152505 is an equidigital number, since it uses as much as digits as its factorization.

12152505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9200.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 12152505 is about 3486.0443198560. The cubic root of 12152505 is about 229.9086278516.

Adding to 12152505 its reverse (50525121), we get a palindrome (62677626).

The spelling of 12152505 in words is "twelve million, one hundred fifty-two thousand, five hundred five".