185090930 has 8 divisors (see below), whose sum is σ = 333163692. Its totient is φ = 74036368.

The previous prime is 185090923. The next prime is 185090947. The reversal of 185090930 is 39090581.

185090930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 184878409 + 212521 = 13597^2 + 461^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9254537 + ... + 9254556.

Almost surely, 2^185090930 is an apocalyptic number.

185090930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

185090930 is a deficient number, since it is larger than the sum of its proper divisors (148072762).

185090930 is a wasteful number, since it uses less digits than its factorization.

185090930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18509100.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 185090930 is about 13604.8127513759. The cubic root of 185090930 is about 569.8952613544.

The spelling of 185090930 in words is "one hundred eighty-five million, ninety thousand, nine hundred thirty".