147427666 has 16 divisors (see below), whose sum is σ = 228070080. Its totient is φ = 71439760.

The previous prime is 147427663. The next prime is 147427691. The reversal of 147427666 is 666724741.

147427666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (147427663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421 + ... + 17176.

It is an arithmetic number, because the mean of its divisors is an integer number (14254380).

Almost surely, 2^147427666 is an apocalyptic number.

147427666 is a deficient number, since it is larger than the sum of its proper divisors (80642414).

147427666 is a wasteful number, since it uses less digits than its factorization.

147427666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17729.

The product of its digits is 338688, while the sum is 43.

The square root of 147427666 is about 12141.9794926528. The cubic root of 147427666 is about 528.2745191114.

The spelling of 147427666 in words is "one hundred forty-seven million, four hundred twenty-seven thousand, six hundred sixty-six".