142833139 has 2 divisors, whose sum is σ = 142833140. Its totient is φ = 142833138.

The previous prime is 142833137. The next prime is 142833157. The reversal of 142833139 is 931338241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142833139 - 2¹ = 142833137 is a prime.

Together with 142833137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (142833137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71416569 + 71416570.

It is an arithmetic number, because the mean of its divisors is an integer number (71416570).

Almost surely, 2^142833139 is an apocalyptic number.

142833139 is a deficient number, since it is larger than the sum of its proper divisors (1).

142833139 is an equidigital number, since it uses as much as digits as its factorization.

142833139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 142833139 is about 11951.2818977715. The cubic root of 142833139 is about 522.7286777842.

The spelling of 142833139 in words is "one hundred forty-two million, eight hundred thirty-three thousand, one hundred thirty-nine".