142231243 has 16 divisors (see below), whose sum is σ = 177917184. Its totient is φ = 110460960.

The previous prime is 142231181. The next prime is 142231249. The reversal of 142231243 is 342132241.

142231243 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 a de Polignac number, because none of the positive numbers 2^k-142231243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142231249) 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, 21496 + ... + 27322.

It is an arithmetic number, because the mean of its divisors is an integer number (11119824).

Almost surely, 2^142231243 is an apocalyptic number.

142231243 is a deficient number, since it is larger than the sum of its proper divisors (35685941).

142231243 is a wasteful number, since it uses less digits than its factorization.

142231243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6162.

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

The square root of 142231243 is about 11926.0740816079. The cubic root of 142231243 is about 521.9933879072.

Adding to 142231243 its reverse (342132241), we get a palindrome (484363484).

The spelling of 142231243 in words is "one hundred forty-two million, two hundred thirty-one thousand, two hundred forty-three".