188913045 has 8 divisors (see below), whose sum is σ = 302260896. Its totient is φ = 100753616.

The previous prime is 188913031. The next prime is 188913071. The reversal of 188913045 is 540319881.

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

It is a cyclic number.

It is not a de Polignac number, because 188913045 - 2⁵ = 188913013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188912994 and 188913012.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6297087 + ... + 6297116.

It is an arithmetic number, because the mean of its divisors is an integer number (37782612).

Almost surely, 2^188913045 is an apocalyptic number.

188913045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188913045 is a deficient number, since it is larger than the sum of its proper divisors (113347851).

188913045 is a wasteful number, since it uses less digits than its factorization.

188913045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12594211.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 188913045 is about 13744.5641982567. The cubic root of 188913045 is about 573.7913313147.

The spelling of 188913045 in words is "one hundred eighty-eight million, nine hundred thirteen thousand, forty-five".