185214099 has 16 divisors (see below), whose sum is σ = 298833408. Its totient is φ = 99610752.

The previous prime is 185214089. The next prime is 185214121. The reversal of 185214099 is 990412581.

It is not a de Polignac number, because 185214099 - 2⁴ = 185214083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (185214059) 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 15 ways as a sum of consecutive naturals, for example, 259047 + ... + 259760.

It is an arithmetic number, because the mean of its divisors is an integer number (18677088).

Almost surely, 2^185214099 is an apocalyptic number.

185214099 is a deficient number, since it is larger than the sum of its proper divisors (113619309).

185214099 is a wasteful number, since it uses less digits than its factorization.

185214099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518834.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 185214099 is about 13609.3386687230. The cubic root of 185214099 is about 570.0216458385.

It can be divided in two parts, 1852 and 14099, that added together give a palindrome (15951).

The spelling of 185214099 in words is "one hundred eighty-five million, two hundred fourteen thousand, ninety-nine".