142187874 has 16 divisors (see below), whose sum is σ = 284707008. Its totient is φ = 47340752.

The previous prime is 142187873. The next prime is 142187893. The reversal of 142187874 is 478781241.

142187874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142187873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8037 + ... + 18680.

It is an arithmetic number, because the mean of its divisors is an integer number (17794188).

Almost surely, 2^142187874 is an apocalyptic number.

142187874 is an abundant number, since it is smaller than the sum of its proper divisors (142519134).

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

142187874 is a wasteful number, since it uses less digits than its factorization.

142187874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27609.

The product of its digits is 100352, while the sum is 42.

The square root of 142187874 is about 11924.2557000427. The cubic root of 142187874 is about 521.9403272901.

The spelling of 142187874 in words is "one hundred forty-two million, one hundred eighty-seven thousand, eight hundred seventy-four".