187201166 has 8 divisors (see below), whose sum is σ = 280873440. Its totient is φ = 93576688.

The previous prime is 187201123. The next prime is 187201171. The reversal of 187201166 is 661102781.

It is a happy number.

187201166 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395 + ... + 19353.

It is an arithmetic number, because the mean of its divisors is an integer number (35109180).

Almost surely, 2^187201166 is an apocalyptic number.

187201166 is a deficient number, since it is larger than the sum of its proper divisors (93672274).

187201166 is a wasteful number, since it uses less digits than its factorization.

187201166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23898.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 187201166 is about 13682.1477115254. The cubic root of 187201166 is about 572.0528888941.

The spelling of 187201166 in words is "one hundred eighty-seven million, two hundred one thousand, one hundred sixty-six".