142426667 has 2 divisors, whose sum is σ = 142426668. Its totient is φ = 142426666.

The previous prime is 142426637. The next prime is 142426681. The reversal of 142426667 is 766624241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142426667 - 2²⁰ = 141378091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142426667.

It is not a weakly prime, because it can be changed into another prime (142426607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71213333 + 71213334.

It is an arithmetic number, because the mean of its divisors is an integer number (71213334).

Almost surely, 2^142426667 is an apocalyptic number.

142426667 is a deficient number, since it is larger than the sum of its proper divisors (1).

142426667 is an equidigital number, since it uses as much as digits as its factorization.

142426667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 142426667 is about 11934.2644096735. The cubic root of 142426667 is about 522.2323493551.

The spelling of 142426667 in words is "one hundred forty-two million, four hundred twenty-six thousand, six hundred sixty-seven".