345052109 has 2 divisors, whose sum is σ = 345052110. Its totient is φ = 345052108.

The previous prime is 345052091. The next prime is 345052117. The reversal of 345052109 is 901250543.

Together with previous prime (345052091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343991209 + 1060900 = 18547^2 + 1030^2 .

It is an emirp because it is prime and its reverse (901250543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345052109 - 2⁸ = 345051853 is a prime.

It is a Chen prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345052129) 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, 172526054 + 172526055.

It is an arithmetic number, because the mean of its divisors is an integer number (172526055).

Almost surely, 2^345052109 is an apocalyptic number.

It is an amenable number.

345052109 is a deficient number, since it is larger than the sum of its proper divisors (1).

345052109 is an equidigital number, since it uses as much as digits as its factorization.

345052109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 345052109 is about 18575.5782951702. The cubic root of 345052109 is about 701.3932177407.

The spelling of 345052109 in words is "three hundred forty-five million, fifty-two thousand, one hundred nine".