142189079 has 2 divisors, whose sum is σ = 142189080. Its totient is φ = 142189078.

The previous prime is 142189063. The next prime is 142189081. The reversal of 142189079 is 970981241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142189079 - 2⁴ = 142189063 is a prime.

Together with 142189081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142189009) 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, 71094539 + 71094540.

It is an arithmetic number, because the mean of its divisors is an integer number (71094540).

Almost surely, 2^142189079 is an apocalyptic number.

142189079 is a deficient number, since it is larger than the sum of its proper divisors (1).

142189079 is an equidigital number, since it uses as much as digits as its factorization.

142189079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 142189079 is about 11924.3062271983. The cubic root of 142189079 is about 521.9418017157.

The spelling of 142189079 in words is "one hundred forty-two million, one hundred eighty-nine thousand, seventy-nine".