144930186 has 12 divisors (see below), whose sum is σ = 314015442. Its totient is φ = 48310056.

The previous prime is 144930173. The next prime is 144930209. The reversal of 144930186 is 681039441.

144930186 is a `hidden beast` number, since 1 + 449 + 30 + 186 = 666.

It can be written as a sum of positive squares in only one way, i.e., 88003161 + 56927025 = 9381^2 + 7545^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144930186.

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 5 ways as a sum of consecutive naturals, for example, 4025821 + ... + 4025856.

Almost surely, 2^144930186 is an apocalyptic number.

144930186 is an abundant number, since it is smaller than the sum of its proper divisors (169085256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144930186 is a wasteful number, since it uses less digits than its factorization.

144930186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051685 (or 8051682 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 144930186 is about 12038.6953612092. The cubic root of 144930186 is about 525.2744578553.

The spelling of 144930186 in words is "one hundred forty-four million, nine hundred thirty thousand, one hundred eighty-six".