142858858 has 4 divisors (see below), whose sum is σ = 214288290. Its totient is φ = 71429428.

The previous prime is 142858841. The next prime is 142858861. The reversal of 142858858 is 858858241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 858858241 = 17 ⋅50521073.

It can be written as a sum of positive squares in only one way, i.e., 116057529 + 26801329 = 10773^2 + 5177^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35714713 + ... + 35714716.

Almost surely, 2^142858858 is an apocalyptic number.

142858858 is a deficient number, since it is larger than the sum of its proper divisors (71429432).

142858858 is an equidigital number, since it uses as much as digits as its factorization.

142858858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71429431.

The product of its digits is 819200, while the sum is 49.

The square root of 142858858 is about 11952.3578427020. The cubic root of 142858858 is about 522.7600506437.

The spelling of 142858858 in words is "one hundred forty-two million, eight hundred fifty-eight thousand, eight hundred fifty-eight".