345318437 has 2 divisors, whose sum is σ = 345318438. Its totient is φ = 345318436.

The previous prime is 345318403. The next prime is 345318439. The reversal of 345318437 is 734813543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233508961 + 111809476 = 15281^2 + 10574^2 .

It is a cyclic number.

It is not a de Polignac number, because 345318437 - 2¹⁴ = 345302053 is a prime.

Together with 345318439, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345318437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345318439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172659218 + 172659219.

It is an arithmetic number, because the mean of its divisors is an integer number (172659219).

Almost surely, 2^345318437 is an apocalyptic number.

It is an amenable number.

345318437 is a deficient number, since it is larger than the sum of its proper divisors (1).

345318437 is an equidigital number, since it uses as much as digits as its factorization.

345318437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 38.

The square root of 345318437 is about 18582.7456797966. The cubic root of 345318437 is about 701.5736277986.

The spelling of 345318437 in words is "three hundred forty-five million, three hundred eighteen thousand, four hundred thirty-seven".