188641 has 8 divisors (see below), whose sum is σ = 199584. Its totient is φ = 178080.

The previous prime is 188633. The next prime is 188653. The reversal of 188641 is 146881.

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 188641 - 2³ = 188633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188621) 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, 1710 + ... + 1816.

It is an arithmetic number, because the mean of its divisors is an integer number (24948).

2¹⁸⁸⁶⁴¹ is an apocalyptic number.

It is an amenable number.

188641 is a deficient number, since it is larger than the sum of its proper divisors (10943).

188641 is a wasteful number, since it uses less digits than its factorization.

188641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its digits is 1536, while the sum is 28.

The square root of 188641 is about 434.3282169051. The cubic root of 188641 is about 57.3515768816.

The spelling of 188641 in words is "one hundred eighty-eight thousand, six hundred forty-one".