345029249 has 2 divisors, whose sum is σ = 345029250. Its totient is φ = 345029248.

The previous prime is 345029207. The next prime is 345029339. The reversal of 345029249 is 942920543.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 301890625 + 43138624 = 17375^2 + 6568^2 .

It is a cyclic number.

It is not a de Polignac number, because 345029249 - 2²⁴ = 328252033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345029449) 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, 172514624 + 172514625.

It is an arithmetic number, because the mean of its divisors is an integer number (172514625).

Almost surely, 2^345029249 is an apocalyptic number.

It is an amenable number.

345029249 is a deficient number, since it is larger than the sum of its proper divisors (1).

345029249 is an equidigital number, since it uses as much as digits as its factorization.

345029249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 345029249 is about 18574.9629609321. The cubic root of 345029249 is about 701.3777280966.

The spelling of 345029249 in words is "three hundred forty-five million, twenty-nine thousand, two hundred forty-nine".