245256271 has 4 divisors (see below), whose sum is σ = 264122152. Its totient is φ = 226390392.

The previous prime is 245256269. The next prime is 245256289. The reversal of 245256271 is 172652542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172652542 = 2 ⋅86326271.

It is a cyclic number.

It is not a de Polignac number, because 245256271 - 2¹ = 245256269 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 (245256241) 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, 9432921 + ... + 9432946.

It is an arithmetic number, because the mean of its divisors is an integer number (66030538).

Almost surely, 2^245256271 is an apocalyptic number.

245256271 is a deficient number, since it is larger than the sum of its proper divisors (18865881).

245256271 is a wasteful number, since it uses less digits than its factorization.

245256271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18865880.

The product of its digits is 33600, while the sum is 34.

The square root of 245256271 is about 15660.6599797071. The cubic root of 245256271 is about 625.9505714493.

The spelling of 245256271 in words is "two hundred forty-five million, two hundred fifty-six thousand, two hundred seventy-one".