250112981 has 2 divisors, whose sum is σ = 250112982. Its totient is φ = 250112980.

The previous prime is 250112969. The next prime is 250113013. The reversal of 250112981 is 189211052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162970756 + 87142225 = 12766^2 + 9335^2 .

It is a cyclic number.

It is not a de Polignac number, because 250112981 - 2⁶ = 250112917 is a prime.

It is a super-2 number, since 2×250112981² = 125113006529412722, 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 (250112581) 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, 125056490 + 125056491.

It is an arithmetic number, because the mean of its divisors is an integer number (125056491).

Almost surely, 2^250112981 is an apocalyptic number.

It is an amenable number.

250112981 is a deficient number, since it is larger than the sum of its proper divisors (1).

250112981 is an equidigital number, since it uses as much as digits as its factorization.

250112981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 250112981 is about 15814.9606702009. The cubic root of 250112981 is about 630.0554087489.

The spelling of 250112981 in words is "two hundred fifty million, one hundred twelve thousand, nine hundred eighty-one".