345318439 has 2 divisors, whose sum is σ = 345318440. Its totient is φ = 345318438.

The previous prime is 345318437. The next prime is 345318443. The reversal of 345318439 is 934813543.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345318439 - 2¹ = 345318437 is a prime.

Together with 345318437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345318437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172659219 + 172659220.

It is an arithmetic number, because the mean of its divisors is an integer number (172659220).

Almost surely, 2^345318439 is an apocalyptic number.

345318439 is a deficient number, since it is larger than the sum of its proper divisors (1).

345318439 is an equidigital number, since it uses as much as digits as its factorization.

345318439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 345318439 is about 18582.7457336100. The cubic root of 345318439 is about 701.5736291530.

The spelling of 345318439 in words is "three hundred forty-five million, three hundred eighteen thousand, four hundred thirty-nine".