142833857 has 2 divisors, whose sum is σ = 142833858. Its totient is φ = 142833856.

The previous prime is 142833839. The next prime is 142833863. The reversal of 142833857 is 758338241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78127921 + 64705936 = 8839^2 + 8044^2 .

It is a cyclic number.

It is not a de Polignac number, because 142833857 - 2⁸ = 142833601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142833157) 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, 71416928 + 71416929.

It is an arithmetic number, because the mean of its divisors is an integer number (71416929).

Almost surely, 2^142833857 is an apocalyptic number.

It is an amenable number.

142833857 is a deficient number, since it is larger than the sum of its proper divisors (1).

142833857 is an equidigital number, since it uses as much as digits as its factorization.

142833857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 41.

The square root of 142833857 is about 11951.3119363524. The cubic root of 142833857 is about 522.7295536746.

The spelling of 142833857 in words is "one hundred forty-two million, eight hundred thirty-three thousand, eight hundred fifty-seven".