12144699 has 18 divisors (see below), whose sum is σ = 20407140. Its totient is φ = 6939576.

The previous prime is 12144697. The next prime is 12144701. The reversal of 12144699 is 99644121.

It is a happy number.

12144699 is a `hidden beast` number, since 121 + 446 + 99 = 666.

12144699 is digitally balanced in base 2 and base 4, because in such bases 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 (12144697) and next prime (12144701).

It is not a de Polignac number, because 12144699 - 2¹ = 12144697 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12144697) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13329 + ... + 14210.

It is an arithmetic number, because the mean of its divisors is an integer number (1133730).

Almost surely, 2^12144699 is an apocalyptic number.

12144699 is a deficient number, since it is larger than the sum of its proper divisors (8262441).

12144699 is a wasteful number, since it uses less digits than its factorization.

12144699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27559 (or 27549 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12144699 is about 3484.9245328988. The cubic root of 12144699 is about 229.8593910578.

The spelling of 12144699 in words is "twelve million, one hundred forty-four thousand, six hundred ninety-nine".