188513345 has 8 divisors (see below), whose sum is σ = 238122240. Its totient is φ = 142873200.

The previous prime is 188513341. The next prime is 188513393. The reversal of 188513345 is 543315881.

188513345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 188513345 - 2² = 188513341 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 188513299 and 188513308.

It is not an unprimeable number, because it can be changed into a prime (188513341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992081 + ... + 992270.

It is an arithmetic number, because the mean of its divisors is an integer number (29765280).

Almost surely, 2^188513345 is an apocalyptic number.

It is an amenable number.

188513345 is a deficient number, since it is larger than the sum of its proper divisors (49608895).

188513345 is a wasteful number, since it uses less digits than its factorization.

188513345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984375.

The product of its digits is 57600, while the sum is 38.

The square root of 188513345 is about 13730.0162053801. The cubic root of 188513345 is about 573.3863719261.

The spelling of 188513345 in words is "one hundred eighty-eight million, five hundred thirteen thousand, three hundred forty-five".