142442879 has 2 divisors, whose sum is σ = 142442880. Its totient is φ = 142442878.

The previous prime is 142442863. The next prime is 142442893. The reversal of 142442879 is 978244241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142442879 - 2⁴ = 142442863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142442849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71221439 + 71221440.

It is an arithmetic number, because the mean of its divisors is an integer number (71221440).

Almost surely, 2^142442879 is an apocalyptic number.

142442879 is a deficient number, since it is larger than the sum of its proper divisors (1).

142442879 is an equidigital number, since it uses as much as digits as its factorization.

142442879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 142442879 is about 11934.9436110943. The cubic root of 142442879 is about 522.2521633169.

The spelling of 142442879 in words is "one hundred forty-two million, four hundred forty-two thousand, eight hundred seventy-nine".