12144395387 has 4 divisors (see below), whose sum is σ = 12147647160. Its totient is φ = 12141143616.

The previous prime is 12144395293. The next prime is 12144395399. The reversal of 12144395387 is 78359344121.

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 12144395387 - 2¹⁴ = 12144379003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144391387) 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, 1620278 + ... + 1627755.

It is an arithmetic number, because the mean of its divisors is an integer number (3036911790).

Almost surely, 2^12144395387 is an apocalyptic number.

12144395387 is a deficient number, since it is larger than the sum of its proper divisors (3251773).

12144395387 is an equidigital number, since it uses as much as digits as its factorization.

12144395387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251772.

The product of its digits is 725760, while the sum is 47.

The spelling of 12144395387 in words is "twelve billion, one hundred forty-four million, three hundred ninety-five thousand, three hundred eighty-seven".