145166 has 8 divisors (see below), whose sum is σ = 248880. Its totient is φ = 62208.

The previous prime is 145139. The next prime is 145177. The reversal of 145166 is 661541.

145166 = 189² + 190² + ... + 192².

145166 is nontrivially palindromic in base 3.

145166 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 an Ulam number.

It is a congruent number.

It is an unprimeable number.

145166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5171 + ... + 5198.

It is an arithmetic number, because the mean of its divisors is an integer number (31110).

2¹⁴⁵¹⁶⁶ is an apocalyptic number.

145166 is a deficient number, since it is larger than the sum of its proper divisors (103714).

145166 is a wasteful number, since it uses less digits than its factorization.

145166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10378.

The product of its digits is 720, while the sum is 23.

The square root of 145166 is about 381.0065616233. The cubic root of 145166 is about 52.5559192536. Note that the first 3 decimals are identical.

The spelling of 145166 in words is "one hundred forty-five thousand, one hundred sixty-six".