188068445 has 6 divisors (see below), whose sum is σ = 225718938. Its totient is φ = 150430224.

The previous prime is 188068423. The next prime is 188068453. The reversal of 188068445 is 544860881.

It can be written as a sum of positive squares in 3 ways, for example, as 120516484 + 67551961 = 10978^2 + 8219^2 .

It is not a de Polignac number, because 188068445 - 2¹⁶ = 188002909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 188068396 and 188068405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27599 + ... + 33731.

It is an arithmetic number, because the mean of its divisors is an integer number (37619823).

Almost surely, 2^188068445 is an apocalyptic number.

It is an amenable number.

188068445 is a deficient number, since it is larger than the sum of its proper divisors (37650493).

188068445 is an frugal number, since it uses more digits than its factorization.

188068445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271 (or 6138 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 44.

The square root of 188068445 is about 13713.8049060062. The cubic root of 188068445 is about 572.9349440399.

The spelling of 188068445 in words is "one hundred eighty-eight million, sixty-eight thousand, four hundred forty-five".