142442479 has 2 divisors, whose sum is σ = 142442480. Its totient is φ = 142442478.

The previous prime is 142442437. The next prime is 142442497. The reversal of 142442479 is 974244241.

It is a happy number.

Together with next prime (142442497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142442479 - 2²⁵ = 108888047 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 (142442879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71221239 + 71221240.

It is an arithmetic number, because the mean of its divisors is an integer number (71221240).

Almost surely, 2^142442479 is an apocalyptic number.

142442479 is a deficient number, since it is larger than the sum of its proper divisors (1).

142442479 is an equidigital number, since it uses as much as digits as its factorization.

142442479 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 142442479 is about 11934.9268535672. The cubic root of 142442479 is about 522.2516744635.

The spelling of 142442479 in words is "one hundred forty-two million, four hundred forty-two thousand, four hundred seventy-nine".