142123199 has 2 divisors, whose sum is σ = 142123200. Its totient is φ = 142123198.

The previous prime is 142123109. The next prime is 142123237. The reversal of 142123199 is 991321241.

142123199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142123199 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 (142123109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71061599 + 71061600.

It is an arithmetic number, because the mean of its divisors is an integer number (71061600).

Almost surely, 2^142123199 is an apocalyptic number.

142123199 is a deficient number, since it is larger than the sum of its proper divisors (1).

142123199 is an equidigital number, since it uses as much as digits as its factorization.

142123199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 142123199 is about 11921.5434822845. The cubic root of 142123199 is about 521.8611794014.

The spelling of 142123199 in words is "one hundred forty-two million, one hundred twenty-three thousand, one hundred ninety-nine".