147966978 has 8 divisors (see below), whose sum is σ = 295933968. Its totient is φ = 49322324.

The previous prime is 147966977. The next prime is 147967067. The reversal of 147966978 is 879669741.

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

147966978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (147966971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12330576 + ... + 12330587.

It is an arithmetic number, because the mean of its divisors is an integer number (36991746).

Almost surely, 2^147966978 is an apocalyptic number.

147966978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

147966978 is a wasteful number, since it uses less digits than its factorization.

147966978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24661168.

The product of its digits is 4572288, while the sum is 57.

The square root of 147966978 is about 12164.1677890434. The cubic root of 147966978 is about 528.9179037436.

The spelling of 147966978 in words is "one hundred forty-seven million, nine hundred sixty-six thousand, nine hundred seventy-eight".