142981079 has 2 divisors, whose sum is σ = 142981080. Its totient is φ = 142981078.

The previous prime is 142981043. The next prime is 142981109. The reversal of 142981079 is 970189241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142981079 - 2⁸ = 142980823 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 (142981039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71490539 + 71490540.

It is an arithmetic number, because the mean of its divisors is an integer number (71490540).

Almost surely, 2^142981079 is an apocalyptic number.

142981079 is a deficient number, since it is larger than the sum of its proper divisors (1).

142981079 is an equidigital number, since it uses as much as digits as its factorization.

142981079 is an evil number, because the sum of its binary digits is even.

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

The square root of 142981079 is about 11957.4695901767. The cubic root of 142981079 is about 522.9090882905.

The spelling of 142981079 in words is "one hundred forty-two million, nine hundred eighty-one thousand, seventy-nine".