145663186 has 16 divisors (see below), whose sum is σ = 232300224. Its totient is φ = 68349424.

The previous prime is 145663171. The next prime is 145663229. The reversal of 145663186 is 681366541.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27436 + ... + 32311.

It is an arithmetic number, because the mean of its divisors is an integer number (14518764).

Almost surely, 2^145663186 is an apocalyptic number.

145663186 is a deficient number, since it is larger than the sum of its proper divisors (86637038).

145663186 is a wasteful number, since it uses less digits than its factorization.

145663186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59825.

The product of its digits is 103680, while the sum is 40.

The square root of 145663186 is about 12069.1004635805. The cubic root of 145663186 is about 526.1585131424.

The spelling of 145663186 in words is "one hundred forty-five million, six hundred sixty-three thousand, one hundred eighty-six".