185116939 has 8 divisors (see below), whose sum is σ = 213435360. Its totient is φ = 157266816.

The previous prime is 185116937. The next prime is 185116963. The reversal of 185116939 is 939611581.

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

It is not a de Polignac number, because 185116939 - 2¹ = 185116937 is a prime.

It is a super-2 number, since 2×185116939² = 68536562209459442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 185116895 and 185116904.

It is not an unprimeable number, because it can be changed into a prime (185116933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116224 + ... + 117805.

It is an arithmetic number, because the mean of its divisors is an integer number (26679420).

Almost surely, 2^185116939 is an apocalyptic number.

185116939 is a deficient number, since it is larger than the sum of its proper divisors (28318421).

185116939 is a wasteful number, since it uses less digits than its factorization.

185116939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234149.

The product of its digits is 58320, while the sum is 43.

The square root of 185116939 is about 13605.7685927698. The cubic root of 185116939 is about 569.9219540213.

The spelling of 185116939 in words is "one hundred eighty-five million, one hundred sixteen thousand, nine hundred thirty-nine".