345475 has 12 divisors (see below), whose sum is σ = 461776. Its totient is φ = 254880.

The previous prime is 345473. The next prime is 345479. The reversal of 345475 is 574543.

It is not a de Polignac number, because 345475 - 2¹ = 345473 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207 + ... + 856.

2³⁴⁵⁴⁷⁵ is an apocalyptic number.

345475 is a deficient number, since it is larger than the sum of its proper divisors (116301).

345475 is a wasteful number, since it uses less digits than its factorization.

345475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1081 counting only the distinct ones).

The product of its digits is 8400, while the sum is 28.

The square root of 345475 is about 587.7712139940. The cubic root of 345475 is about 70.1679639974.

It can be divided in two parts, 345 and 475, that added together give a triangular number (820 = T₄₀).

The spelling of 345475 in words is "three hundred forty-five thousand, four hundred seventy-five".