116892581 has 8 divisors (see below), whose sum is σ = 127040760. Its totient is φ = 106909632.

The previous prime is 116892569. The next prime is 116892593. The reversal of 116892581 is 185298611.

It is an interprime number because it is at equal distance from previous prime (116892569) and next prime (116892593).

It can be written as a sum of positive squares in 4 ways, for example, as 36481 + 116856100 = 191^2 + 10810^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116892581 - 2¹⁰ = 116891557 is a prime.

It is a super-2 number, since 2×116892581² = 27327750985683122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116892521) 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 in 7 ways as a sum of consecutive naturals, for example, 39830 + ... + 42663.

It is an arithmetic number, because the mean of its divisors is an integer number (15880095).

Almost surely, 2^116892581 is an apocalyptic number.

It is an amenable number.

116892581 is a deficient number, since it is larger than the sum of its proper divisors (10148179).

116892581 is a wasteful number, since it uses less digits than its factorization.

116892581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82615.

The product of its digits is 34560, while the sum is 41.

The square root of 116892581 is about 10811.6872411294. The cubic root of 116892581 is about 488.9475969232.

The spelling of 116892581 in words is "one hundred sixteen million, eight hundred ninety-two thousand, five hundred eighty-one".