248489441 has 2 divisors, whose sum is σ = 248489442. Its totient is φ = 248489440.

The previous prime is 248489363. The next prime is 248489443. The reversal of 248489441 is 144984842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226201600 + 22287841 = 15040^2 + 4721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248489441 is a prime.

Together with 248489443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 248489392 and 248489401.

It is not a weakly prime, because it can be changed into another prime (248489443) 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, 124244720 + 124244721.

It is an arithmetic number, because the mean of its divisors is an integer number (124244721).

Almost surely, 2^248489441 is an apocalyptic number.

It is an amenable number.

248489441 is a deficient number, since it is larger than the sum of its proper divisors (1).

248489441 is an equidigital number, since it uses as much as digits as its factorization.

248489441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294912, while the sum is 44.

The square root of 248489441 is about 15763.5478557335. The cubic root of 248489441 is about 628.6891708375.

The spelling of 248489441 in words is "two hundred forty-eight million, four hundred eighty-nine thousand, four hundred forty-one".