12453915 has 16 divisors (see below), whose sum is σ = 19980576. Its totient is φ = 6624000.

The previous prime is 12453907. The next prime is 12453923. The reversal of 12453915 is 51935421.

12453915 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12453907) and next prime (12453923).

It is not a de Polignac number, because 12453915 - 2³ = 12453907 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6015 + ... + 7815.

It is an arithmetic number, because the mean of its divisors is an integer number (1248786).

Almost surely, 2^12453915 is an apocalyptic number.

12453915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12453915 is a deficient number, since it is larger than the sum of its proper divisors (7526661).

12453915 is a wasteful number, since it uses less digits than its factorization.

12453915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270.

The product of its digits is 5400, while the sum is 30.

The square root of 12453915 is about 3529.0104845410. The cubic root of 12453915 is about 231.7938802948.

The spelling of 12453915 in words is "twelve million, four hundred fifty-three thousand, nine hundred fifteen".