147978329 has 8 divisors (see below), whose sum is σ = 153226560. Its totient is φ = 142739856.

The previous prime is 147978317. The next prime is 147978371. The reversal of 147978329 is 923879741.

147978329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-147978329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147978529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43094 + ... + 46400.

It is an arithmetic number, because the mean of its divisors is an integer number (19153320).

Almost surely, 2^147978329 is an apocalyptic number.

It is an amenable number.

147978329 is a deficient number, since it is larger than the sum of its proper divisors (5248231).

147978329 is a wasteful number, since it uses less digits than its factorization.

147978329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879.

The product of its digits is 762048, while the sum is 50.

The square root of 147978329 is about 12164.6343553762. The cubic root of 147978329 is about 528.9314283684.

The spelling of 147978329 in words is "one hundred forty-seven million, nine hundred seventy-eight thousand, three hundred twenty-nine".