244648091 has 2 divisors, whose sum is σ = 244648092. Its totient is φ = 244648090.

The previous prime is 244648087. The next prime is 244648093. The reversal of 244648091 is 190846442.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 244648091 - 2² = 244648087 is a prime.

Together with 244648093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (244648093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122324045 + 122324046.

It is an arithmetic number, because the mean of its divisors is an integer number (122324046).

Almost surely, 2^244648091 is an apocalyptic number.

244648091 is a deficient number, since it is larger than the sum of its proper divisors (1).

244648091 is an equidigital number, since it uses as much as digits as its factorization.

244648091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 244648091 is about 15641.2304822862. The cubic root of 244648091 is about 625.4327379647.

The spelling of 244648091 in words is "two hundred forty-four million, six hundred forty-eight thousand, ninety-one".