345257271 has 12 divisors (see below), whose sum is σ = 498902872. Its totient is φ = 230080176.

The previous prime is 345257219. The next prime is 345257273. The reversal of 345257271 is 172752543.

345257271 is a `hidden beast` number, since 34 + 52 + 572 + 7 + 1 = 666.

It is not a de Polignac number, because 345257271 - 2⁹ = 345256759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345257273) 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, 22665 + ... + 34701.

Almost surely, 2^345257271 is an apocalyptic number.

345257271 is a deficient number, since it is larger than the sum of its proper divisors (153645601).

345257271 is a wasteful number, since it uses less digits than its factorization.

345257271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15230 (or 15227 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 345257271 is about 18581.0998328947. The cubic root of 345257271 is about 701.5322022795.

The spelling of 345257271 in words is "three hundred forty-five million, two hundred fifty-seven thousand, two hundred seventy-one".