142366857 has 16 divisors (see below), whose sum is σ = 203824512. Its totient is φ = 88067840.

The previous prime is 142366853. The next prime is 142366879. The reversal of 142366857 is 758663241.

It is a cyclic number.

It is not a de Polignac number, because 142366857 - 2² = 142366853 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (142366853) 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, 16038 + ... + 23279.

It is an arithmetic number, because the mean of its divisors is an integer number (12739032).

Almost surely, 2^142366857 is an apocalyptic number.

142366857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

142366857 is a deficient number, since it is larger than the sum of its proper divisors (61457655).

142366857 is a wasteful number, since it uses less digits than its factorization.

142366857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39408.

The product of its digits is 241920, while the sum is 42.

The square root of 142366857 is about 11931.7583364733. The cubic root of 142366857 is about 522.1592378358.

The spelling of 142366857 in words is "one hundred forty-two million, three hundred sixty-six thousand, eight hundred fifty-seven".