246320981 has 2 divisors, whose sum is σ = 246320982. Its totient is φ = 246320980.

The previous prime is 246320953. The next prime is 246321013. The reversal of 246320981 is 189023642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242580625 + 3740356 = 15575^2 + 1934^2 .

It is a cyclic number.

It is not a de Polignac number, because 246320981 - 2⁶ = 246320917 is a prime.

It is a super-2 number, since 2×246320981² = 121348051361604722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246320941) 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, 123160490 + 123160491.

It is an arithmetic number, because the mean of its divisors is an integer number (123160491).

Almost surely, 2^246320981 is an apocalyptic number.

It is an amenable number.

246320981 is a deficient number, since it is larger than the sum of its proper divisors (1).

246320981 is an equidigital number, since it uses as much as digits as its factorization.

246320981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 246320981 is about 15694.6163062370. The cubic root of 246320981 is about 626.8550590156.

The spelling of 246320981 in words is "two hundred forty-six million, three hundred twenty thousand, nine hundred eighty-one".