142285706 has 4 divisors (see below), whose sum is σ = 213428562. Its totient is φ = 71142852.

The previous prime is 142285681. The next prime is 142285721. The reversal of 142285706 is 607582241.

142285706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 139027681 + 3258025 = 11791^2 + 1805^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35571425 + ... + 35571428.

Almost surely, 2^142285706 is an apocalyptic number.

142285706 is a deficient number, since it is larger than the sum of its proper divisors (71142856).

142285706 is an equidigital number, since it uses as much as digits as its factorization.

142285706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71142855.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 142285706 is about 11928.3572213444. The cubic root of 142285706 is about 522.0600064114.

The spelling of 142285706 in words is "one hundred forty-two million, two hundred eighty-five thousand, seven hundred six".