145186 has 8 divisors (see below), whose sum is σ = 219420. Its totient is φ = 72048.

The previous prime is 145177. The next prime is 145193. The reversal of 145186 is 681541.

It can be written as a sum of positive squares in 2 ways, for example, as 145161 + 25 = 381^2 + 5^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 145186.

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, 300 + ... + 616.

2¹⁴⁵¹⁸⁶ is an apocalyptic number.

145186 is a deficient number, since it is larger than the sum of its proper divisors (74234).

145186 is a wasteful number, since it uses less digits than its factorization.

145186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its digits is 960, while the sum is 25.

The square root of 145186 is about 381.0328069865. The cubic root of 145186 is about 52.5583327437.

Subtracting from 145186 its sum of digits (25), we obtain a square (145161 = 381²).

The spelling of 145186 in words is "one hundred forty-five thousand, one hundred eighty-six".