142429667 has 2 divisors, whose sum is σ = 142429668. Its totient is φ = 142429666.

The previous prime is 142429663. The next prime is 142429691. The reversal of 142429667 is 766924241.

It is a weak prime.

It is an emirp because it is prime and its reverse (766924241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142429667 - 2² = 142429663 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142429663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71214833 + 71214834.

It is an arithmetic number, because the mean of its divisors is an integer number (71214834).

Almost surely, 2^142429667 is an apocalyptic number.

142429667 is a deficient number, since it is larger than the sum of its proper divisors (1).

142429667 is an equidigital number, since it uses as much as digits as its factorization.

142429667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 142429667 is about 11934.3900975291. The cubic root of 142429667 is about 522.2360160047.

The spelling of 142429667 in words is "one hundred forty-two million, four hundred twenty-nine thousand, six hundred sixty-seven".