147725666 has 16 divisors (see below), whose sum is σ = 242045280. Its totient is φ = 67061280.

The previous prime is 147725651. The next prime is 147725693. The reversal of 147725666 is 666527741.

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, 14990 + ... + 22806.

It is an arithmetic number, because the mean of its divisors is an integer number (15127830).

Almost surely, 2^147725666 is an apocalyptic number.

147725666 is a deficient number, since it is larger than the sum of its proper divisors (94319614).

147725666 is a wasteful number, since it uses less digits than its factorization.

147725666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8689.

The product of its digits is 423360, while the sum is 44.

The square root of 147725666 is about 12154.2447729178. The cubic root of 147725666 is about 528.6302186443.

The spelling of 147725666 in words is "one hundred forty-seven million, seven hundred twenty-five thousand, six hundred sixty-six".