188005485 has 16 divisors (see below), whose sum is σ = 300980736. Its totient is φ = 100212288.

The previous prime is 188005471. The next prime is 188005487. The reversal of 188005485 is 584500881.

It is not a de Polignac number, because 188005485 - 2⁷ = 188005357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188005487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43492 + ... + 47618.

It is an arithmetic number, because the mean of its divisors is an integer number (18811296).

Almost surely, 2^188005485 is an apocalyptic number.

188005485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188005485 is a deficient number, since it is larger than the sum of its proper divisors (112975251).

188005485 is a wasteful number, since it uses less digits than its factorization.

188005485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172.

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 188005485 is about 13711.5092167128. The cubic root of 188005485 is about 572.8710027620.

The spelling of 188005485 in words is "one hundred eighty-eight million, five thousand, four hundred eighty-five".