142830859 has 2 divisors, whose sum is σ = 142830860. Its totient is φ = 142830858.

The previous prime is 142830833. The next prime is 142830871. The reversal of 142830859 is 958038241.

It is a strong prime.

It is an emirp because it is prime and its reverse (958038241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142830859 - 2²³ = 134442251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142830899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71415429 + 71415430.

It is an arithmetic number, because the mean of its divisors is an integer number (71415430).

Almost surely, 2^142830859 is an apocalyptic number.

142830859 is a deficient number, since it is larger than the sum of its proper divisors (1).

142830859 is an equidigital number, since it uses as much as digits as its factorization.

142830859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 142830859 is about 11951.1865101336. The cubic root of 142830859 is about 522.7258963854.

The spelling of 142830859 in words is "one hundred forty-two million, eight hundred thirty thousand, eight hundred fifty-nine".