142285705 has 16 divisors (see below), whose sum is σ = 178573824. Its totient is φ = 108630720.

The previous prime is 142285681. The next prime is 142285721. The reversal of 142285705 is 507582241.

It is a happy number.

142285705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142285705 - 2¹⁵ = 142252937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61072 + ... + 63358.

It is an arithmetic number, because the mean of its divisors is an integer number (11160864).

Almost surely, 2^142285705 is an apocalyptic number.

It is an amenable number.

142285705 is a deficient number, since it is larger than the sum of its proper divisors (36288119).

142285705 is a wasteful number, since it uses less digits than its factorization.

142285705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 142285705 is about 11928.3571794275. The cubic root of 142285705 is about 522.0600051883.

The spelling of 142285705 in words is "one hundred forty-two million, two hundred eighty-five thousand, seven hundred five".