262706981 has 2 divisors, whose sum is σ = 262706982. Its totient is φ = 262706980.

The previous prime is 262706971. The next prime is 262707043. The reversal of 262706981 is 189607262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206381956 + 56325025 = 14366^2 + 7505^2 .

It is a cyclic number.

It is not a de Polignac number, because 262706981 - 2¹⁸ = 262444837 is a prime.

It is a super-2 number, since 2×262706981² = 138029915732268722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (262706921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131353490 + 131353491.

It is an arithmetic number, because the mean of its divisors is an integer number (131353491).

Almost surely, 2^262706981 is an apocalyptic number.

It is an amenable number.

262706981 is a deficient number, since it is larger than the sum of its proper divisors (1).

262706981 is an equidigital number, since it uses as much as digits as its factorization.

262706981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 262706981 is about 16208.2380597028. The cubic root of 262706981 is about 640.4578275231.

The spelling of 262706981 in words is "two hundred sixty-two million, seven hundred six thousand, nine hundred eighty-one".