245842271 has 2 divisors, whose sum is σ = 245842272. Its totient is φ = 245842270.

The previous prime is 245842217. The next prime is 245842279. The reversal of 245842271 is 172248542.

Together with previous prime (245842217) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245842271 - 2¹⁴ = 245825887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245842279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122921135 + 122921136.

It is an arithmetic number, because the mean of its divisors is an integer number (122921136).

Almost surely, 2^245842271 is an apocalyptic number.

245842271 is a deficient number, since it is larger than the sum of its proper divisors (1).

245842271 is an equidigital number, since it uses as much as digits as its factorization.

245842271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 35.

The square root of 245842271 is about 15679.3581182394. The cubic root of 245842271 is about 626.4487106387.

The spelling of 245842271 in words is "two hundred forty-five million, eight hundred forty-two thousand, two hundred seventy-one".