248402681 has 2 divisors, whose sum is σ = 248402682. Its totient is φ = 248402680.

The previous prime is 248402677. The next prime is 248402717. The reversal of 248402681 is 186204842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202094656 + 46308025 = 14216^2 + 6805^2 .

It is a cyclic number.

It is not a de Polignac number, because 248402681 - 2² = 248402677 is a prime.

It is a super-2 number, since 2×248402681² = 123407783855975522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (248402621) 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, 124201340 + 124201341.

It is an arithmetic number, because the mean of its divisors is an integer number (124201341).

Almost surely, 2^248402681 is an apocalyptic number.

It is an amenable number.

248402681 is a deficient number, since it is larger than the sum of its proper divisors (1).

248402681 is an equidigital number, since it uses as much as digits as its factorization.

248402681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 248402681 is about 15760.7956969184. The cubic root of 248402681 is about 628.6159934534.

The spelling of 248402681 in words is "two hundred forty-eight million, four hundred two thousand, six hundred eighty-one".