12238515 has 12 divisors (see below), whose sum is σ = 21213504. Its totient is φ = 6527184.

The previous prime is 12238511. The next prime is 12238517. The reversal of 12238515 is 51583221.

It is a happy number.

It is not a de Polignac number, because 12238515 - 2² = 12238511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12238511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135939 + ... + 136028.

It is an arithmetic number, because the mean of its divisors is an integer number (1767792).

Almost surely, 2^12238515 is an apocalyptic number.

12238515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12238515 is a deficient number, since it is larger than the sum of its proper divisors (8974989).

12238515 is a wasteful number, since it uses less digits than its factorization.

12238515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271978 (or 271975 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 12238515 is about 3498.3589009706. The cubic root of 12238515 is about 230.4497500893.

The spelling of 12238515 in words is "twelve million, two hundred thirty-eight thousand, five hundred fifteen".