345342269 has 2 divisors, whose sum is σ = 345342270. Its totient is φ = 345342268.

The previous prime is 345342253. The next prime is 345342287. The reversal of 345342269 is 962243543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277888900 + 67453369 = 16670^2 + 8213^2 .

It is a cyclic number.

It is not a de Polignac number, because 345342269 - 2⁴ = 345342253 is a prime.

It is a super-2 number, since 2×345342269² = 238522565516136722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345342209) 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, 172671134 + 172671135.

It is an arithmetic number, because the mean of its divisors is an integer number (172671135).

Almost surely, 2^345342269 is an apocalyptic number.

It is an amenable number.

345342269 is a deficient number, since it is larger than the sum of its proper divisors (1).

345342269 is an equidigital number, since it uses as much as digits as its factorization.

345342269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 38.

The square root of 345342269 is about 18583.3869087419. The cubic root of 345342269 is about 701.5897670257.

The spelling of 345342269 in words is "three hundred forty-five million, three hundred forty-two thousand, two hundred sixty-nine".