147244747 has 4 divisors (see below), whose sum is σ = 158571280. Its totient is φ = 135918216.

The previous prime is 147244717. The next prime is 147244819. The reversal of 147244747 is 747442741.

147244747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147244747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147244717) 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, 5663247 + ... + 5663272.

It is an arithmetic number, because the mean of its divisors is an integer number (39642820).

Almost surely, 2^147244747 is an apocalyptic number.

147244747 is a deficient number, since it is larger than the sum of its proper divisors (11326533).

147244747 is a wasteful number, since it uses less digits than its factorization.

147244747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11326532.

The product of its digits is 175616, while the sum is 40.

The square root of 147244747 is about 12134.4446514869. Note that the first 3 decimals coincide. The cubic root of 147244747 is about 528.0559453939.

The spelling of 147244747 in words is "one hundred forty-seven million, two hundred forty-four thousand, seven hundred forty-seven".