147478218 has 64 divisors (see below), whose sum is σ = 312947712. Its totient is φ = 46287360.

The previous prime is 147478211. The next prime is 147478237. The reversal of 147478218 is 812874741.

It is a self number, because there is not a number n which added to its sum of digits gives 147478218.

It is not an unprimeable number, because it can be changed into a prime (147478211) 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 31 ways as a sum of consecutive naturals, for example, 1520346 + ... + 1520442.

It is an arithmetic number, because the mean of its divisors is an integer number (4889808).

Almost surely, 2^147478218 is an apocalyptic number.

147478218 is an abundant number, since it is smaller than the sum of its proper divisors (165469494).

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

147478218 is a wasteful number, since it uses less digits than its factorization.

147478218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its digits is 100352, while the sum is 42.

The square root of 147478218 is about 12144.0610176333. The cubic root of 147478218 is about 528.3348928582.

It can be divided in two parts, 147478 and 218, that added together give a triangular number (147696 = T₅₄₃).

The spelling of 147478218 in words is "one hundred forty-seven million, four hundred seventy-eight thousand, two hundred eighteen".