145528186 has 8 divisors (see below), whose sum is σ = 218425140. Its totient is φ = 72719808.

The previous prime is 145528183. The next prime is 145528217. The reversal of 145528186 is 681825541.

It is a happy number.

145528186 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 144744961 + 783225 = 12031^2 + 885^2 .

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

It is not an unprimeable number, because it can be changed into a prime (145528183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17871 + ... + 24706.

Almost surely, 2^145528186 is an apocalyptic number.

145528186 is a deficient number, since it is larger than the sum of its proper divisors (72896954).

145528186 is a wasteful number, since it uses less digits than its factorization.

145528186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44288.

The product of its digits is 76800, while the sum is 40.

The square root of 145528186 is about 12063.5063725270. The cubic root of 145528186 is about 525.9959157687.

The spelling of 145528186 in words is "one hundred forty-five million, five hundred twenty-eight thousand, one hundred eighty-six".