147638478 has 32 divisors (see below), whose sum is σ = 328960800. Its totient is φ = 43860096.

The previous prime is 147638471. The next prime is 147638501. The reversal of 147638478 is 874836741.

147638478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147638471) 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 15 ways as a sum of consecutive naturals, for example, 30373 + ... + 34896.

It is an arithmetic number, because the mean of its divisors is an integer number (10280025).

Almost surely, 2^147638478 is an apocalyptic number.

147638478 is an abundant number, since it is smaller than the sum of its proper divisors (181322322).

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

147638478 is a wasteful number, since it uses less digits than its factorization.

147638478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65316.

The product of its digits is 903168, while the sum is 48.

The square root of 147638478 is about 12150.6575130731. The cubic root of 147638478 is about 528.5261986203.

The spelling of 147638478 in words is "one hundred forty-seven million, six hundred thirty-eight thousand, four hundred seventy-eight".