245111 has 4 divisors (see below), whose sum is σ = 255792. Its totient is φ = 234432.

The previous prime is 245107. The next prime is 245129. The reversal of 245111 is 111542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245111 - 2² = 245107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245111.

It is not an unprimeable number, because it can be changed into a prime (245131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5306 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (63948).

2²⁴⁵¹¹¹ is an apocalyptic number.

245111 is a deficient number, since it is larger than the sum of its proper divisors (10681).

245111 is a wasteful number, since it uses less digits than its factorization.

245111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680.

The product of its digits is 40, while the sum is 14.

The square root of 245111 is about 495.0868610658. The cubic root of 245111 is about 62.5826958674.

Adding to 245111 its reverse (111542), we get a palindrome (356653).

The spelling of 245111 in words is "two hundred forty-five thousand, one hundred eleven".