142204079 has 2 divisors, whose sum is σ = 142204080. Its totient is φ = 142204078.

The previous prime is 142204057. The next prime is 142204087. The reversal of 142204079 is 970402241.

It is a strong prime.

It is an emirp because it is prime and its reverse (970402241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142204079 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 (142204679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71102039 + 71102040.

It is an arithmetic number, because the mean of its divisors is an integer number (71102040).

Almost surely, 2^142204079 is an apocalyptic number.

142204079 is a deficient number, since it is larger than the sum of its proper divisors (1).

142204079 is an equidigital number, since it uses as much as digits as its factorization.

142204079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 142204079 is about 11924.9351780209. The cubic root of 142204079 is about 521.9601548639.

The spelling of 142204079 in words is "one hundred forty-two million, two hundred four thousand, seventy-nine".