116581943 has 12 divisors (see below), whose sum is σ = 122601960. Its totient is φ = 110828256.

The previous prime is 116581939. The next prime is 116581973. The reversal of 116581943 is 349185611.

It is not a de Polignac number, because 116581943 - 2² = 116581939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 116581897 and 116581906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116581973) 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 11 ways as a sum of consecutive naturals, for example, 55313 + ... + 57381.

It is an arithmetic number, because the mean of its divisors is an integer number (10216830).

Almost surely, 2^116581943 is an apocalyptic number.

116581943 is a deficient number, since it is larger than the sum of its proper divisors (6020017).

116581943 is an equidigital number, since it uses as much as digits as its factorization.

116581943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2165 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 116581943 is about 10797.3118413798. The cubic root of 116581943 is about 488.5140922332.

The spelling of 116581943 in words is "one hundred sixteen million, five hundred eighty-one thousand, nine hundred forty-three".