345945 has 8 divisors (see below), whose sum is σ = 553536. Its totient is φ = 184496.

The previous prime is 345937. The next prime is 345953. The reversal of 345945 is 549543.

It is an interprime number because it is at equal distance from previous prime (345937) and next prime (345953).

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

It is a cyclic number.

It is not a de Polignac number, because 345945 - 2³ = 345937 is a prime.

It is a Curzon number.

345945 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11517 + ... + 11546.

It is an arithmetic number, because the mean of its divisors is an integer number (69192).

2³⁴⁵⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

345945 is a deficient number, since it is larger than the sum of its proper divisors (207591).

345945 is a wasteful number, since it uses less digits than its factorization.

345945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23071.

The product of its digits is 10800, while the sum is 30.

The square root of 345945 is about 588.1708935335. The cubic root of 345945 is about 70.1997694816.

The spelling of 345945 in words is "three hundred forty-five thousand, nine hundred forty-five".