345139343 has 2 divisors, whose sum is σ = 345139344. Its totient is φ = 345139342.

The previous prime is 345139331. The next prime is 345139349. The reversal of 345139343 is 343931543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345139343 - 2⁸ = 345139087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345139349) 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, 172569671 + 172569672.

It is an arithmetic number, because the mean of its divisors is an integer number (172569672).

Almost surely, 2^345139343 is an apocalyptic number.

345139343 is a deficient number, since it is larger than the sum of its proper divisors (1).

345139343 is an equidigital number, since it uses as much as digits as its factorization.

345139343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 35.

The square root of 345139343 is about 18577.9262298029. The cubic root of 345139343 is about 701.4523200993.

The spelling of 345139343 in words is "three hundred forty-five million, one hundred thirty-nine thousand, three hundred forty-three".