142668967 has 16 divisors (see below), whose sum is σ = 172074240. Its totient is φ = 115553088.

The previous prime is 142668919. The next prime is 142668973. The reversal of 142668967 is 769866241.

142668967 = 969² + 970² + ... + 1101².

It is not a de Polignac number, because 142668967 - 2²⁷ = 8451239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142668967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142668917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60963 + ... + 63259.

It is an arithmetic number, because the mean of its divisors is an integer number (10754640).

Almost surely, 2^142668967 is an apocalyptic number.

142668967 is a deficient number, since it is larger than the sum of its proper divisors (29405273).

142668967 is a wasteful number, since it uses less digits than its factorization.

142668967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790.

The product of its digits is 870912, while the sum is 49.

The square root of 142668967 is about 11944.4115384560. The cubic root of 142668967 is about 522.5283267229.

The spelling of 142668967 in words is "one hundred forty-two million, six hundred sixty-eight thousand, nine hundred sixty-seven".