185349161 has 8 divisors (see below), whose sum is σ = 195230400. Its totient is φ = 175480560.

The previous prime is 185349137. The next prime is 185349173. The reversal of 185349161 is 161943581.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185349161 is a prime.

It is a super-2 number, since 2×185349161² = 68708622966807842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (185349191) 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, 50300 + ... + 53858.

It is an arithmetic number, because the mean of its divisors is an integer number (24403800).

Almost surely, 2^185349161 is an apocalyptic number.

185349161 is the 6089-th centered decagonal number.

It is an amenable number.

185349161 is a deficient number, since it is larger than the sum of its proper divisors (9881239).

185349161 is a wasteful number, since it uses less digits than its factorization.

185349161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6319.

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

The square root of 185349161 is about 13614.2998718259. The cubic root of 185349161 is about 570.1601694133.

The spelling of 185349161 in words is "one hundred eighty-five million, three hundred forty-nine thousand, one hundred sixty-one".