142012865 has 16 divisors (see below), whose sum is σ = 173775360. Its totient is φ = 111386880.

The previous prime is 142012853. The next prime is 142012903. The reversal of 142012865 is 568210241.

142012865 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 142012865 - 2²² = 137818561 is a prime.

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, 79856 + ... + 81614.

It is an arithmetic number, because the mean of its divisors is an integer number (10860960).

Almost surely, 2^142012865 is an apocalyptic number.

It is an amenable number.

142012865 is a deficient number, since it is larger than the sum of its proper divisors (31762495).

142012865 is a wasteful number, since it uses less digits than its factorization.

142012865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 142012865 is about 11916.9150789959. The cubic root of 142012865 is about 521.7260995593.

The spelling of 142012865 in words is "one hundred forty-two million, twelve thousand, eight hundred sixty-five".