142444279 has 2 divisors, whose sum is σ = 142444280. Its totient is φ = 142444278.

The previous prime is 142444277. The next prime is 142444303. The reversal of 142444279 is 972444241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142444279 - 2¹ = 142444277 is a prime.

Together with 142444277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142444277) 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, 71222139 + 71222140.

It is an arithmetic number, because the mean of its divisors is an integer number (71222140).

Almost surely, 2^142444279 is an apocalyptic number.

142444279 is a deficient number, since it is larger than the sum of its proper divisors (1).

142444279 is an equidigital number, since it uses as much as digits as its factorization.

142444279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 37.

The square root of 142444279 is about 11935.0022622537. The cubic root of 142444279 is about 522.2538742967.

The spelling of 142444279 in words is "one hundred forty-two million, four hundred forty-four thousand, two hundred seventy-nine".