188530045 has 8 divisors (see below), whose sum is σ = 246803040. Its totient is φ = 137112720.

The previous prime is 188530039. The next prime is 188530079. The reversal of 188530045 is 540035881.

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

It is not a de Polignac number, because 188530045 - 2²¹ = 186432893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1713855 + ... + 1713964.

It is an arithmetic number, because the mean of its divisors is an integer number (30850380).

Almost surely, 2^188530045 is an apocalyptic number.

It is an amenable number.

188530045 is a deficient number, since it is larger than the sum of its proper divisors (58272995).

188530045 is a wasteful number, since it uses less digits than its factorization.

188530045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427835.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 188530045 is about 13730.6243485138. The cubic root of 188530045 is about 573.4033031230.

The spelling of 188530045 in words is "one hundred eighty-eight million, five hundred thirty thousand, forty-five".