340354139 has 2 divisors, whose sum is σ = 340354140. Its totient is φ = 340354138.

The previous prime is 340354117. The next prime is 340354211. The reversal of 340354139 is 931453043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340354139 - 2²⁸ = 71918683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340354939) 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, 170177069 + 170177070.

It is an arithmetic number, because the mean of its divisors is an integer number (170177070).

Almost surely, 2^340354139 is an apocalyptic number.

340354139 is a deficient number, since it is larger than the sum of its proper divisors (1).

340354139 is an equidigital number, since it uses as much as digits as its factorization.

340354139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 340354139 is about 18448.6893572416. The cubic root of 340354139 is about 698.1954465365.

The spelling of 340354139 in words is "three hundred forty million, three hundred fifty-four thousand, one hundred thirty-nine".