142431307 has 2 divisors, whose sum is σ = 142431308. Its totient is φ = 142431306.

The previous prime is 142431271. The next prime is 142431323. The reversal of 142431307 is 703134241.

142431307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142431307 - 2¹⁵ = 142398539 is a prime.

It is not a weakly prime, because it can be changed into another prime (142431337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71215653 + 71215654.

It is an arithmetic number, because the mean of its divisors is an integer number (71215654).

Almost surely, 2^142431307 is an apocalyptic number.

142431307 is a deficient number, since it is larger than the sum of its proper divisors (1).

142431307 is an equidigital number, since it uses as much as digits as its factorization.

142431307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 142431307 is about 11934.4588063305. The cubic root of 142431307 is about 522.2380204181.

Adding to 142431307 its reverse (703134241), we get a palindrome (845565548).

The spelling of 142431307 in words is "one hundred forty-two million, four hundred thirty-one thousand, three hundred seven".