187066 has 12 divisors (see below), whose sum is σ = 308826. Its totient is φ = 84920.
The previous prime is 187049. The next prime is 187067. The reversal of 187066 is 660781.
It can be written as a sum of positive squares in only one way, i.e., 184041 + 3025 = 429^2 + 55^2 .
It is an Ulam number.
It is not an unprimeable number, because it can be changed into a prime (187067) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145 + ... + 628.
2187066 is an apocalyptic number.
187066 is a deficient number, since it is larger than the sum of its proper divisors (121760).
187066 is a wasteful number, since it uses less digits than its factorization.
187066 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 797 (or 786 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 28.
The square root of 187066 is about 432.5112715294. The cubic root of 187066 is about 57.1915174798.
It can be divided in two parts, 1870 and 66, that added together give a square (1936 = 442).
The spelling of 187066 in words is "one hundred eighty-seven thousand, sixty-six".
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