185385079 has 4 divisors (see below), whose sum is σ = 202238280. Its totient is φ = 168531880.

The previous prime is 185385073. The next prime is 185385089. The reversal of 185385079 is 970583581.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970583581 = 11 ⋅88234871.

It is not a de Polignac number, because 185385079 - 2⁷ = 185384951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185385073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8426584 + ... + 8426605.

It is an arithmetic number, because the mean of its divisors is an integer number (50559570).

Almost surely, 2^185385079 is an apocalyptic number.

185385079 is a deficient number, since it is larger than the sum of its proper divisors (16853201).

185385079 is a wasteful number, since it uses less digits than its factorization.

185385079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16853200.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 185385079 is about 13615.6189356195. The cubic root of 185385079 is about 570.1969966464.

The spelling of 185385079 in words is "one hundred eighty-five million, three hundred eighty-five thousand, seventy-nine".