142149199 has 2 divisors, whose sum is σ = 142149200. Its totient is φ = 142149198.

The previous prime is 142149193. The next prime is 142149209. The reversal of 142149199 is 991941241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142149199 - 2³ = 142149191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142149191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71074599 + 71074600.

It is an arithmetic number, because the mean of its divisors is an integer number (71074600).

Almost surely, 2^142149199 is an apocalyptic number.

142149199 is a deficient number, since it is larger than the sum of its proper divisors (1).

142149199 is an equidigital number, since it uses as much as digits as its factorization.

142149199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 40.

The square root of 142149199 is about 11922.6338952431. The cubic root of 142149199 is about 521.8930005337.

The spelling of 142149199 in words is "one hundred forty-two million, one hundred forty-nine thousand, one hundred ninety-nine".