142855679 has 2 divisors, whose sum is σ = 142855680. Its totient is φ = 142855678.

The previous prime is 142855663. The next prime is 142855693. The reversal of 142855679 is 976558241.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (976558241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142855679 - 2⁴ = 142855663 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 (142855619) 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, 71427839 + 71427840.

It is an arithmetic number, because the mean of its divisors is an integer number (71427840).

Almost surely, 2^142855679 is an apocalyptic number.

142855679 is a deficient number, since it is larger than the sum of its proper divisors (1).

142855679 is an equidigital number, since it uses as much as digits as its factorization.

142855679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 47.

The square root of 142855679 is about 11952.2248556493. The cubic root of 142855679 is about 522.7561730017.

The spelling of 142855679 in words is "one hundred forty-two million, eight hundred fifty-five thousand, six hundred seventy-nine".