1449147643 has 4 divisors (see below), whose sum is σ = 1534391640. Its totient is φ = 1363903648.

The previous prime is 1449147619. The next prime is 1449147647. The reversal of 1449147643 is 3467419441.

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

It is a cyclic number.

It is not a de Polignac number, because 1449147643 - 2¹³ = 1449139451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1449147643.

It is not an unprimeable number, because it can be changed into a prime (1449147647) 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, 42621973 + ... + 42622006.

It is an arithmetic number, because the mean of its divisors is an integer number (383597910).

Almost surely, 2^1449147643 is an apocalyptic number.

1449147643 is a deficient number, since it is larger than the sum of its proper divisors (85243997).

1449147643 is an equidigital number, since it uses as much as digits as its factorization.

1449147643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85243996.

The product of its digits is 290304, while the sum is 43.

The square root of 1449147643 is about 38067.6718883622. The cubic root of 1449147643 is about 1131.6293728855.

The spelling of 1449147643 in words is "one billion, four hundred forty-nine million, one hundred forty-seven thousand, six hundred forty-three".