142299967 has 2 divisors, whose sum is σ = 142299968. Its totient is φ = 142299966.

The previous prime is 142299961. The next prime is 142299991. The reversal of 142299967 is 769992241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142299967 - 2¹¹ = 142297919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142299967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142299961) 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, 71149983 + 71149984.

It is an arithmetic number, because the mean of its divisors is an integer number (71149984).

Almost surely, 2^142299967 is an apocalyptic number.

142299967 is a deficient number, since it is larger than the sum of its proper divisors (1).

142299967 is an equidigital number, since it uses as much as digits as its factorization.

142299967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 142299967 is about 11928.9549835683. The cubic root of 142299967 is about 522.0774474911.

The spelling of 142299967 in words is "one hundred forty-two million, two hundred ninety-nine thousand, nine hundred sixty-seven".