245311 has 8 divisors (see below), whose sum is σ = 277200. Its totient is φ = 215040.

The previous prime is 245299. The next prime is 245317. The reversal of 245311 is 113542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245311 - 2⁵ = 245279 is a prime.

245311 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 703.

It is an arithmetic number, because the mean of its divisors is an integer number (34650).

2²⁴⁵³¹¹ is an apocalyptic number.

245311 is the 222-nd centered decagonal number.

245311 is a deficient number, since it is larger than the sum of its proper divisors (31889).

245311 is a wasteful number, since it uses less digits than its factorization.

245311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its digits is 120, while the sum is 16.

The square root of 245311 is about 495.2888046383. The cubic root of 245311 is about 62.5997128330.

Adding to 245311 its reverse (113542), we get a palindrome (358853).

Subtracting from 245311 its reverse (113542), we obtain a square (131769 = 363²).

It can be divided in two parts, 24 and 5311, that added together give a palindrome (5335).

The spelling of 245311 in words is "two hundred forty-five thousand, three hundred eleven".