142969667 has 2 divisors, whose sum is σ = 142969668. Its totient is φ = 142969666.

The previous prime is 142969657. The next prime is 142969691. The reversal of 142969667 is 766969241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142969667 - 2¹⁰ = 142968643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142969657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71484833 + 71484834.

It is an arithmetic number, because the mean of its divisors is an integer number (71484834).

Almost surely, 2^142969667 is an apocalyptic number.

142969667 is a deficient number, since it is larger than the sum of its proper divisors (1).

142969667 is an equidigital number, since it uses as much as digits as its factorization.

142969667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 142969667 is about 11956.9923893929. The cubic root of 142969667 is about 522.8951759665.

The spelling of 142969667 in words is "one hundred forty-two million, nine hundred sixty-nine thousand, six hundred sixty-seven".