345030349 has 2 divisors, whose sum is σ = 345030350. Its totient is φ = 345030348.

The previous prime is 345030347. The next prime is 345030359. The reversal of 345030349 is 943030543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256576324 + 88454025 = 16018^2 + 9405^2 .

It is a cyclic number.

It is not a de Polignac number, because 345030349 - 2¹ = 345030347 is a prime.

Together with 345030347, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 345030349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345030347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172515174 + 172515175.

It is an arithmetic number, because the mean of its divisors is an integer number (172515175).

Almost surely, 2^345030349 is an apocalyptic number.

It is an amenable number.

345030349 is a deficient number, since it is larger than the sum of its proper divisors (1).

345030349 is an equidigital number, since it uses as much as digits as its factorization.

345030349 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 31.

The square root of 345030349 is about 18574.9925706580. The cubic root of 345030349 is about 701.3784734582.

The spelling of 345030349 in words is "three hundred forty-five million, thirty thousand, three hundred forty-nine".