147666018 has 16 divisors (see below), whose sum is σ = 295558560. Its totient is φ = 49184256.

The previous prime is 147666017. The next prime is 147666019. The reversal of 147666018 is 810666741.

It is a happy number.

147666018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (147666017) and next prime (147666019).

It is not an unprimeable number, because it can be changed into a prime (147666017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280 + ... + 17187.

It is an arithmetic number, because the mean of its divisors is an integer number (18472410).

Almost surely, 2^147666018 is an apocalyptic number.

147666018 is an abundant number, since it is smaller than the sum of its proper divisors (147892542).

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

147666018 is a wasteful number, since it uses less digits than its factorization.

147666018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18881.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 147666018 is about 12151.7907322337. The cubic root of 147666018 is about 528.5590597614.

The spelling of 147666018 in words is "one hundred forty-seven million, six hundred sixty-six thousand, eighteen".