345813999 has 8 divisors (see below), whose sum is σ = 462214320. Its totient is φ = 229978176.

The previous prime is 345813989. The next prime is 345814043. The reversal of 345813999 is 999318543.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345813999 - 2¹³ = 345805807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345813929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139692 + ... + 142145.

It is an arithmetic number, because the mean of its divisors is an integer number (57776790).

Almost surely, 2^345813999 is an apocalyptic number.

345813999 is a deficient number, since it is larger than the sum of its proper divisors (116400321).

345813999 is a wasteful number, since it uses less digits than its factorization.

345813999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282249.

The product of its digits is 1049760, while the sum is 51.

The square root of 345813999 is about 18596.0748277694. The cubic root of 345813999 is about 701.9090737827.

The spelling of 345813999 in words is "three hundred forty-five million, eight hundred thirteen thousand, nine hundred ninety-nine".