342343139 has 2 divisors, whose sum is σ = 342343140. Its totient is φ = 342343138.

The previous prime is 342343087. The next prime is 342343147. The reversal of 342343139 is 931343243.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342343139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (342303139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171171569 + 171171570.

It is an arithmetic number, because the mean of its divisors is an integer number (171171570).

Almost surely, 2^342343139 is an apocalyptic number.

342343139 is a deficient number, since it is larger than the sum of its proper divisors (1).

342343139 is an equidigital number, since it uses as much as digits as its factorization.

342343139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 32.

The square root of 342343139 is about 18502.5170990328. The cubic root of 342343139 is about 699.5528702359.

It can be divided in two parts, 34234 and 3139, that added together give a palindrome (37373).

The spelling of 342343139 in words is "three hundred forty-two million, three hundred forty-three thousand, one hundred thirty-nine".