142430231 has 2 divisors, whose sum is σ = 142430232. Its totient is φ = 142430230.

The previous prime is 142430219. The next prime is 142430261. The reversal of 142430231 is 132034241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142430231 - 2¹⁴ = 142413847 is a prime.

It is a super-2 number, since 2×142430231² = 40572741405426722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142430261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71215115 + 71215116.

It is an arithmetic number, because the mean of its divisors is an integer number (71215116).

Almost surely, 2^142430231 is an apocalyptic number.

142430231 is a deficient number, since it is larger than the sum of its proper divisors (1).

142430231 is an equidigital number, since it uses as much as digits as its factorization.

142430231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142430231 is about 11934.4137266981. The cubic root of 142430231 is about 522.2367053291.

Adding to 142430231 its reverse (132034241), we get a palindrome (274464472).

The spelling of 142430231 in words is "one hundred forty-two million, four hundred thirty thousand, two hundred thirty-one".