345275 has 12 divisors (see below), whose sum is σ = 489552. Its totient is φ = 236640.

The previous prime is 345271. The next prime is 345307. The reversal of 345275 is 572543.

It is not a de Polignac number, because 345275 - 2² = 345271 is a prime.

It is a plaindrome in base 6.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (345271) 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, 812 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (40796).

2³⁴⁵²⁷⁵ is an apocalyptic number.

345275 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

345275 is a deficient number, since it is larger than the sum of its proper divisors (144277).

345275 is a wasteful number, since it uses less digits than its factorization.

345275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990 (or 1985 counting only the distinct ones).

The product of its digits is 4200, while the sum is 26.

The square root of 345275 is about 587.6010551386. The cubic root of 345275 is about 70.1544209993.

The spelling of 345275 in words is "three hundred forty-five thousand, two hundred seventy-five".