147273447 has 4 divisors (see below), whose sum is σ = 196364600. Its totient is φ = 98182296.

The previous prime is 147273433. The next prime is 147273449. The reversal of 147273447 is 744372741.

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

It is not a de Polignac number, because 147273447 - 2¹⁵ = 147240679 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 (147273449) 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, 24545572 + ... + 24545577.

It is an arithmetic number, because the mean of its divisors is an integer number (49091150).

Almost surely, 2^147273447 is an apocalyptic number.

147273447 is a deficient number, since it is larger than the sum of its proper divisors (49091153).

147273447 is an equidigital number, since it uses as much as digits as its factorization.

147273447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49091152.

The product of its digits is 131712, while the sum is 39.

The square root of 147273447 is about 12135.6271778594. The cubic root of 147273447 is about 528.0902515891.

The spelling of 147273447 in words is "one hundred forty-seven million, two hundred seventy-three thousand, four hundred forty-seven".