10490981 has 2 divisors, whose sum is σ = 10490982. Its totient is φ = 10490980.

The previous prime is 10490969. The next prime is 10491001. The reversal of 10490981 is 18909401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 58081 = 3230^2 + 241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10490981 is a prime.

It is a super-2 number, since 2×10490981² = 220121364684722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10490881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5245490 + 5245491.

It is an arithmetic number, because the mean of its divisors is an integer number (5245491).

Almost surely, 2^10490981 is an apocalyptic number.

It is an amenable number.

10490981 is a deficient number, since it is larger than the sum of its proper divisors (1).

10490981 is an equidigital number, since it uses as much as digits as its factorization.

10490981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 10490981 is about 3238.9783883194. The cubic root of 10490981 is about 218.9132423948.

The spelling of 10490981 in words is "ten million, four hundred ninety thousand, nine hundred eighty-one".