147565844449 has 3 divisors (see below), whose sum is σ = 147566228593. Its totient is φ = 147565460306.

The previous prime is 147565844407. The next prime is 147565844471. The reversal of 147565844449 is 944448565741.

The square root of 147565844449 is 384143.

It is a perfect power (a square), and thus also a powerful number.

147565844449 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, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-147565844449 is a prime.

It is a super-2 number, since 2×147565844449² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147565847449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 192072 + ... + 576214.

Almost surely, 2^147565844449 is an apocalyptic number.

147565844449 is the 384143-rd square number.

147565844449 is the 192072-nd centered octagonal number.

It is an amenable number.

147565844449 is a deficient number, since it is larger than the sum of its proper divisors (384144).

147565844449 is an frugal number, since it uses more digits than its factorization.

147565844449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768286 (or 384143 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 61.

The spelling of 147565844449 in words is "one hundred forty-seven billion, five hundred sixty-five million, eight hundred forty-four thousand, four hundred forty-nine".