147225279 has 4 divisors (see below), whose sum is σ = 196300376. Its totient is φ = 98150184.

The previous prime is 147225271. The next prime is 147225311. The reversal of 147225279 is 972522741.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 147225279 - 2³ = 147225271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147225271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24537544 + ... + 24537549.

It is an arithmetic number, because the mean of its divisors is an integer number (49075094).

Almost surely, 2^147225279 is an apocalyptic number.

147225279 is a deficient number, since it is larger than the sum of its proper divisors (49075097).

147225279 is an equidigital number, since it uses as much as digits as its factorization.

147225279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49075096.

The product of its digits is 70560, while the sum is 39.

The square root of 147225279 is about 12133.6424456962. The cubic root of 147225279 is about 528.0326720198.

The spelling of 147225279 in words is "one hundred forty-seven million, two hundred twenty-five thousand, two hundred seventy-nine".