248440481 has 2 divisors, whose sum is σ = 248440482. Its totient is φ = 248440480.

The previous prime is 248440463. The next prime is 248440483. The reversal of 248440481 is 184044842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188238400 + 60202081 = 13720^2 + 7759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248440481 is a prime.

It is a super-2 number, since 2×248440481² = 123445345199022722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 248440483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (248440483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124220240 + 124220241.

It is an arithmetic number, because the mean of its divisors is an integer number (124220241).

Almost surely, 2^248440481 is an apocalyptic number.

It is an amenable number.

248440481 is a deficient number, since it is larger than the sum of its proper divisors (1).

248440481 is an equidigital number, since it uses as much as digits as its factorization.

248440481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32768, while the sum is 35.

The square root of 248440481 is about 15761.9948293355. The cubic root of 248440481 is about 628.6478778105.

The spelling of 248440481 in words is "two hundred forty-eight million, four hundred forty thousand, four hundred eighty-one".