342140431 has 2 divisors, whose sum is σ = 342140432. Its totient is φ = 342140430.

The previous prime is 342140417. The next prime is 342140471. The reversal of 342140431 is 134041243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342140431 - 2²³ = 333751823 is a prime.

It is a super-2 number, since 2×342140431² = 234120149049731522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342140471) 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, 171070215 + 171070216.

It is an arithmetic number, because the mean of its divisors is an integer number (171070216).

Almost surely, 2^342140431 is an apocalyptic number.

342140431 is a deficient number, since it is larger than the sum of its proper divisors (1).

342140431 is an equidigital number, since it uses as much as digits as its factorization.

342140431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 342140431 is about 18497.0384386258. The cubic root of 342140431 is about 699.4147700427.

Adding to 342140431 its reverse (134041243), we get a palindrome (476181674).

The spelling of 342140431 in words is "three hundred forty-two million, one hundred forty thousand, four hundred thirty-one".