5290981 has 2 divisors, whose sum is σ = 5290982. Its totient is φ = 5290980.

The previous prime is 5290973. The next prime is 5290993. The reversal of 5290981 is 1890925.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3481956 + 1809025 = 1866^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 5290981 - 2³ = 5290973 is a prime.

It is a super-2 number, since 2×5290981² = 55988959884722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5290921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2645490 + 2645491.

It is an arithmetic number, because the mean of its divisors is an integer number (2645491).

Almost surely, 2^5290981 is an apocalyptic number.

It is an amenable number.

5290981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5290981 is an equidigital number, since it uses as much as digits as its factorization.

5290981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 5290981 is about 2300.2132509835. The cubic root of 5290981 is about 174.2523861932.

The spelling of 5290981 in words is "five million, two hundred ninety thousand, nine hundred eighty-one".