12142299 has 8 divisors (see below), whose sum is σ = 17435152. Its totient is φ = 7472160.

The previous prime is 12142289. The next prime is 12142331. The reversal of 12142299 is 99224121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12142299 - 2⁴ = 12142283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12142219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155632 + ... + 155709.

It is an arithmetic number, because the mean of its divisors is an integer number (2179394).

Almost surely, 2^12142299 is an apocalyptic number.

12142299 is a deficient number, since it is larger than the sum of its proper divisors (5292853).

12142299 is a wasteful number, since it uses less digits than its factorization.

12142299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311357.

The product of its digits is 2592, while the sum is 30.

The square root of 12142299 is about 3484.5801755735. The cubic root of 12142299 is about 229.8442486795.

It can be divided in two parts, 12 and 142299, that added together give a triangular number (142311 = T₅₃₃).

The spelling of 12142299 in words is "twelve million, one hundred forty-two thousand, two hundred ninety-nine".