142031885 has 16 divisors (see below), whose sum is σ = 174528000. Its totient is φ = 110912256.

The previous prime is 142031861. The next prime is 142031887. The reversal of 142031885 is 588130241.

142031885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 142031885 - 2¹² = 142027789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142031887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140261 + ... + 141269.

It is an arithmetic number, because the mean of its divisors is an integer number (10908000).

Almost surely, 2^142031885 is an apocalyptic number.

It is an amenable number.

142031885 is a deficient number, since it is larger than the sum of its proper divisors (32496115).

142031885 is a wasteful number, since it uses less digits than its factorization.

142031885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 142031885 is about 11917.7130776001. The cubic root of 142031885 is about 521.7493903774.

The spelling of 142031885 in words is "one hundred forty-two million, thirty-one thousand, eight hundred eighty-five".