345271 has 2 divisors, whose sum is σ = 345272. Its totient is φ = 345270.

The previous prime is 345263. The next prime is 345307. The reversal of 345271 is 172543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345271 - 2³ = 345263 is a prime.

345271 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172635 + 172636.

It is an arithmetic number, because the mean of its divisors is an integer number (172636).

2³⁴⁵²⁷¹ is an apocalyptic number.

345271 is a deficient number, since it is larger than the sum of its proper divisors (1).

345271 is an equidigital number, since it uses as much as digits as its factorization.

345271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 22.

The square root of 345271 is about 587.5976514589. The cubic root of 345271 is about 70.1541500860.

It can be divided in two parts, 345 and 271, that added together give a palindrome (616).

The spelling of 345271 in words is "three hundred forty-five thousand, two hundred seventy-one".