142331242 has 16 divisors (see below), whose sum is σ = 237954240. Its totient is φ = 63453888.

The previous prime is 142331227. The next prime is 142331243. The reversal of 142331242 is 242133241.

It is not an unprimeable number, because it can be changed into a prime (142331243) 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, 109518 + ... + 110809.

It is an arithmetic number, because the mean of its divisors is an integer number (14872140).

Almost surely, 2^142331242 is an apocalyptic number.

142331242 is a deficient number, since it is larger than the sum of its proper divisors (95622998).

142331242 is a wasteful number, since it uses less digits than its factorization.

142331242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220365.

The product of its digits is 1152, while the sum is 22.

The square root of 142331242 is about 11930.2657975420. The cubic root of 142331242 is about 522.1156924663.

Adding to 142331242 its reverse (242133241), we get a palindrome (384464483).

The spelling of 142331242 in words is "one hundred forty-two million, three hundred thirty-one thousand, two hundred forty-two".