248322749 has 2 divisors, whose sum is σ = 248322750. Its totient is φ = 248322748.

The previous prime is 248322733. The next prime is 248322751. The reversal of 248322749 is 947223842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246709849 + 1612900 = 15707^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 248322749 - 2⁴ = 248322733 is a prime.

Together with 248322751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248322709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124161374 + 124161375.

It is an arithmetic number, because the mean of its divisors is an integer number (124161375).

Almost surely, 2^248322749 is an apocalyptic number.

It is an amenable number.

248322749 is a deficient number, since it is larger than the sum of its proper divisors (1).

248322749 is an equidigital number, since it uses as much as digits as its factorization.

248322749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 248322749 is about 15758.2597072139. The cubic root of 248322749 is about 628.5485600373.

The spelling of 248322749 in words is "two hundred forty-eight million, three hundred twenty-two thousand, seven hundred forty-nine".