345199 has 4 divisors (see below), whose sum is σ = 350920. Its totient is φ = 339480.

The previous prime is 345193. The next prime is 345221. The reversal of 345199 is 991543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991543 = 7 ⋅141649.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345199 is a prime.

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 345199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345193) 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, 2769 + ... + 2890.

It is an arithmetic number, because the mean of its divisors is an integer number (87730).

2³⁴⁵¹⁹⁹ is an apocalyptic number.

345199 is a deficient number, since it is larger than the sum of its proper divisors (5721).

345199 is an equidigital number, since it uses as much as digits as its factorization.

345199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5720.

The product of its digits is 4860, while the sum is 31.

The square root of 345199 is about 587.5363818522. The cubic root of 345199 is about 70.1492732888.

The spelling of 345199 in words is "three hundred forty-five thousand, one hundred ninety-nine".