185130642 has 32 divisors (see below), whose sum is σ = 391262400. Its totient is φ = 58235328.

The previous prime is 185130637. The next prime is 185130679. The reversal of 185130642 is 246031581.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27648 + ... + 33684.

It is an arithmetic number, because the mean of its divisors is an integer number (12226950).

Almost surely, 2^185130642 is an apocalyptic number.

185130642 is an abundant number, since it is smaller than the sum of its proper divisors (206131758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

185130642 is a wasteful number, since it uses less digits than its factorization.

185130642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6330.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 185130642 is about 13606.2721566195. The cubic root of 185130642 is about 569.9360162098.

The spelling of 185130642 in words is "one hundred eighty-five million, one hundred thirty thousand, six hundred forty-two".