116385281 has 4 divisors (see below), whose sum is σ = 123231492. Its totient is φ = 109539072.

The previous prime is 116385233. The next prime is 116385289. The reversal of 116385281 is 182583611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69872881 + 46512400 = 8359^2 + 6820^2 .

It is a cyclic number.

It is not a de Polignac number, because 116385281 - 2²² = 112190977 is a prime.

It is a super-2 number, since 2×116385281² = 27091067266897922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116385289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3423080 + ... + 3423113.

It is an arithmetic number, because the mean of its divisors is an integer number (30807873).

Almost surely, 2^116385281 is an apocalyptic number.

It is an amenable number.

116385281 is a deficient number, since it is larger than the sum of its proper divisors (6846211).

116385281 is an equidigital number, since it uses as much as digits as its factorization.

116385281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846210.

The product of its digits is 11520, while the sum is 35.

The square root of 116385281 is about 10788.2010085093. The cubic root of 116385281 is about 488.2392462666.

The spelling of 116385281 in words is "one hundred sixteen million, three hundred eighty-five thousand, two hundred eighty-one".