12378299 has 4 divisors (see below), whose sum is σ = 12423264. Its totient is φ = 12333336.

The previous prime is 12378277. The next prime is 12378307. The reversal of 12378299 is 99287321.

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 12378299 - 2⁸ = 12378043 is a prime.

It is a super-2 number, since 2×12378299² = 306444572266802, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12378199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22067 + ... + 22620.

It is an arithmetic number, because the mean of its divisors is an integer number (3105816).

Almost surely, 2^12378299 is an apocalyptic number.

12378299 is a deficient number, since it is larger than the sum of its proper divisors (44965).

12378299 is an equidigital number, since it uses as much as digits as its factorization.

12378299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44964.

The product of its digits is 54432, while the sum is 41.

The square root of 12378299 is about 3518.2806880634. The cubic root of 12378299 is about 231.3238026915.

The spelling of 12378299 in words is "twelve million, three hundred seventy-eight thousand, two hundred ninety-nine".