142144459 has 2 divisors, whose sum is σ = 142144460. Its totient is φ = 142144458.

The previous prime is 142144447. The next prime is 142144469. The reversal of 142144459 is 954441241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142144459 - 2⁵ = 142144427 is a prime.

It is not a weakly prime, because it can be changed into another prime (142144469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71072229 + 71072230.

It is an arithmetic number, because the mean of its divisors is an integer number (71072230).

Almost surely, 2^142144459 is an apocalyptic number.

142144459 is a deficient number, since it is larger than the sum of its proper divisors (1).

142144459 is an equidigital number, since it uses as much as digits as its factorization.

142144459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 142144459 is about 11922.4351120063. The cubic root of 142144459 is about 521.8871995857.

The spelling of 142144459 in words is "one hundred forty-two million, one hundred forty-four thousand, four hundred fifty-nine".