245110247 has 4 divisors (see below), whose sum is σ = 248562576. Its totient is φ = 241657920.

The previous prime is 245110223. The next prime is 245110253. The reversal of 245110247 is 742011542.

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 245110247 - 2¹⁰ = 245109223 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 (245112247) 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, 1726058 + ... + 1726199.

It is an arithmetic number, because the mean of its divisors is an integer number (62140644).

Almost surely, 2^245110247 is an apocalyptic number.

245110247 is a deficient number, since it is larger than the sum of its proper divisors (3452329).

245110247 is an equidigital number, since it uses as much as digits as its factorization.

245110247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452328.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 245110247 is about 15655.9971576390. The cubic root of 245110247 is about 625.8263178101.

Adding to 245110247 its reverse (742011542), we get a palindrome (987121789).

The spelling of 245110247 in words is "two hundred forty-five million, one hundred ten thousand, two hundred forty-seven".