147943966 has 8 divisors (see below), whose sum is σ = 229074624. Its totient is φ = 71585760.

The previous prime is 147943909. The next prime is 147943967. The reversal of 147943966 is 669349741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×147943966³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147943967) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1193035 + ... + 1193158.

It is an arithmetic number, because the mean of its divisors is an integer number (28634328).

Almost surely, 2^147943966 is an apocalyptic number.

147943966 is a deficient number, since it is larger than the sum of its proper divisors (81130658).

147943966 is a wasteful number, since it uses less digits than its factorization.

147943966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386226.

The product of its digits is 979776, while the sum is 49.

The square root of 147943966 is about 12163.2218593595. The cubic root of 147943966 is about 528.8904830087.

The spelling of 147943966 in words is "one hundred forty-seven million, nine hundred forty-three thousand, nine hundred sixty-six".