142381902 has 32 divisors (see below), whose sum is σ = 324711072. Its totient is φ = 41232384.

The previous prime is 142381861. The next prime is 142381931. The reversal of 142381902 is 209183241.

142381902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142381902.

It is a congruent 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, 52363 + ... + 55014.

It is an arithmetic number, because the mean of its divisors is an integer number (10147221).

Almost surely, 2^142381902 is an apocalyptic number.

142381902 is an abundant number, since it is smaller than the sum of its proper divisors (182329170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142381902 is a wasteful number, since it uses less digits than its factorization.

142381902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107412.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 142381902 is about 11932.3887801228. The cubic root of 142381902 is about 522.1776307146.

The spelling of 142381902 in words is "one hundred forty-two million, three hundred eighty-one thousand, nine hundred two".