245271 has 16 divisors (see below), whose sum is σ = 371840. Its totient is φ = 142560.

The previous prime is 245269. The next prime is 245279. The reversal of 245271 is 172542.

It is not a de Polignac number, because 245271 - 2¹ = 245269 is a prime.

It is a Duffinian number.

245271 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576 + ... + 906.

It is an arithmetic number, because the mean of its divisors is an integer number (23240).

2²⁴⁵²⁷¹ is an apocalyptic number.

245271 is a deficient number, since it is larger than the sum of its proper divisors (126569).

245271 is a wasteful number, since it uses less digits than its factorization.

245271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 560, while the sum is 21.

The square root of 245271 is about 495.2484225114. The cubic root of 245271 is about 62.5963101800.

The spelling of 245271 in words is "two hundred forty-five thousand, two hundred seventy-one".