142187230 has 16 divisors (see below), whose sum is σ = 258287040. Its totient is φ = 56352672.

The previous prime is 142187183. The next prime is 142187237. The reversal of 142187230 is 32781241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142187237) 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, 64134 + ... + 66313.

It is an arithmetic number, because the mean of its divisors is an integer number (16142940).

Almost surely, 2^142187230 is an apocalyptic number.

142187230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142187230 is a deficient number, since it is larger than the sum of its proper divisors (116099810).

142187230 is a wasteful number, since it uses less digits than its factorization.

142187230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130563.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 142187230 is about 11924.2286962302. The cubic root of 142187230 is about 521.9395392949.

The spelling of 142187230 in words is "one hundred forty-two million, one hundred eighty-seven thousand, two hundred thirty".