345242269 has 2 divisors, whose sum is σ = 345242270. Its totient is φ = 345242268.

The previous prime is 345242251. The next prime is 345242279. The reversal of 345242269 is 962242543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297976644 + 47265625 = 17262^2 + 6875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345242269 is a prime.

It is a super-2 number, since 2×345242269² = 238384448608536722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345242279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172621134 + 172621135.

It is an arithmetic number, because the mean of its divisors is an integer number (172621135).

Almost surely, 2^345242269 is an apocalyptic number.

It is an amenable number.

345242269 is a deficient number, since it is larger than the sum of its proper divisors (1).

345242269 is an equidigital number, since it uses as much as digits as its factorization.

345242269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 345242269 is about 18580.6961387350. The cubic root of 345242269 is about 701.5220412205.

The spelling of 345242269 in words is "three hundred forty-five million, two hundred forty-two thousand, two hundred sixty-nine".