345204599 has 2 divisors, whose sum is σ = 345204600. Its totient is φ = 345204598.

The previous prime is 345204557. The next prime is 345204611. The reversal of 345204599 is 995402543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345204599 - 2²⁰ = 344156023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545204599) 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, 172602299 + 172602300.

It is an arithmetic number, because the mean of its divisors is an integer number (172602300).

Almost surely, 2^345204599 is an apocalyptic number.

345204599 is a deficient number, since it is larger than the sum of its proper divisors (1).

345204599 is an equidigital number, since it uses as much as digits as its factorization.

345204599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 345204599 is about 18579.6824246272. The cubic root of 345204599 is about 701.4965255186.

The spelling of 345204599 in words is "three hundred forty-five million, two hundred four thousand, five hundred ninety-nine".