342486139 has 2 divisors, whose sum is σ = 342486140. Its totient is φ = 342486138.

The previous prime is 342486121. The next prime is 342486149. The reversal of 342486139 is 931684243.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342486139 - 2²¹ = 340388987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (342486149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171243069 + 171243070.

It is an arithmetic number, because the mean of its divisors is an integer number (171243070).

Almost surely, 2^342486139 is an apocalyptic number.

342486139 is a deficient number, since it is larger than the sum of its proper divisors (1).

342486139 is an equidigital number, since it uses as much as digits as its factorization.

342486139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The square root of 342486139 is about 18506.3810346594. The cubic root of 342486139 is about 699.6502599829.

The spelling of 342486139 in words is "three hundred forty-two million, four hundred eighty-six thousand, one hundred thirty-nine".