116262581 has 2 divisors, whose sum is σ = 116262582. Its totient is φ = 116262580.

The previous prime is 116262557. The next prime is 116262623. The reversal of 116262581 is 185262611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101324356 + 14938225 = 10066^2 + 3865^2 .

It is an emirp because it is prime and its reverse (185262611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116262581 is a prime.

It is a super-2 number, since 2×116262581² = 27033975481563122, 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 (116262281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58131290 + 58131291.

It is an arithmetic number, because the mean of its divisors is an integer number (58131291).

Almost surely, 2^116262581 is an apocalyptic number.

It is an amenable number.

116262581 is a deficient number, since it is larger than the sum of its proper divisors (1).

116262581 is an equidigital number, since it uses as much as digits as its factorization.

116262581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 32.

The square root of 116262581 is about 10782.5127405443. The cubic root of 116262581 is about 488.0676093844.

The spelling of 116262581 in words is "one hundred sixteen million, two hundred sixty-two thousand, five hundred eighty-one".