12273915 has 32 divisors (see below), whose sum is σ = 21012480. Its totient is φ = 6096384.

The previous prime is 12273907. The next prime is 12273917. The reversal of 12273915 is 51937221.

It is not a de Polignac number, because 12273915 - 2³ = 12273907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12273917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32196 + ... + 32574.

It is an arithmetic number, because the mean of its divisors is an integer number (656640).

Almost surely, 2^12273915 is an apocalyptic number.

12273915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12273915 is a deficient number, since it is larger than the sum of its proper divisors (8738565).

12273915 is a wasteful number, since it uses less digits than its factorization.

12273915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its digits is 3780, while the sum is 30.

The square root of 12273915 is about 3503.4147627707. The cubic root of 12273915 is about 230.6717287676.

The spelling of 12273915 in words is "twelve million, two hundred seventy-three thousand, nine hundred fifteen".