185009227 has 8 divisors (see below), whose sum is σ = 199429664. Its totient is φ = 170615808.

The previous prime is 185009219. The next prime is 185009239. The reversal of 185009227 is 722900581.

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 185009227 - 2³ = 185009219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 185009192 and 185009201.

It is not an unprimeable number, because it can be changed into a prime (185009257) 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, 8818 + ... + 21160.

It is an arithmetic number, because the mean of its divisors is an integer number (24928708).

Almost surely, 2^185009227 is an apocalyptic number.

185009227 is a deficient number, since it is larger than the sum of its proper divisors (14420437).

185009227 is a wasteful number, since it uses less digits than its factorization.

185009227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13509.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 185009227 is about 13601.8096957721. The cubic root of 185009227 is about 569.8113944583.

The spelling of 185009227 in words is "one hundred eighty-five million, nine thousand, two hundred twenty-seven".