187201 has 8 divisors (see below), whose sum is σ = 218880. Its totient is φ = 156768.

The previous prime is 187193. The next prime is 187211. The reversal of 187201 is 102781.

187201 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 a cyclic number.

It is not a de Polignac number, because 187201 - 2³ = 187193 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187211) 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, 45 + ... + 613.

It is an arithmetic number, because the mean of its divisors is an integer number (27360).

2¹⁸⁷²⁰¹ is an apocalyptic number.

It is an amenable number.

187201 is a deficient number, since it is larger than the sum of its proper divisors (31679).

187201 is an equidigital number, since it uses as much as digits as its factorization.

187201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 187201 is about 432.6673086795. The cubic root of 187201 is about 57.2052719805.

Adding to 187201 its reverse (102781), we get a palindrome (289982).

It can be divided in two parts, 18720 and 1, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 187201 in words is "one hundred eighty-seven thousand, two hundred one".