345230009 has 4 divisors (see below), whose sum is σ = 346100004. Its totient is φ = 344360016.

The previous prime is 345229979. The next prime is 345230071. The reversal of 345230009 is 900032543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156250000 + 188980009 = 12500^2 + 13747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345230009 is a prime.

It is a super-2 number, since 2×345230009² = 238367518228280162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345230009.

It is not an unprimeable number, because it can be changed into a prime (345230099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434402 + ... + 435195.

It is an arithmetic number, because the mean of its divisors is an integer number (86525001).

Almost surely, 2^345230009 is an apocalyptic number.

It is an amenable number.

345230009 is a deficient number, since it is larger than the sum of its proper divisors (869995).

345230009 is an equidigital number, since it uses as much as digits as its factorization.

345230009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869994.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 345230009 is about 18580.3662235167. The cubic root of 345230009 is about 701.5137371369.

The spelling of 345230009 in words is "three hundred forty-five million, two hundred thirty thousand, nine".