1144664341 has 4 divisors (see below), whose sum is σ = 1144732012. Its totient is φ = 1144596672.

The previous prime is 1144664327. The next prime is 1144664351. The reversal of 1144664341 is 1434664411.

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 can be written as a sum of positive squares in 2 ways, for example, as 738480625 + 406183716 = 27175^2 + 20154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144664341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144664297 and 1144664306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144664351) 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, 16351 + ... + 50563.

It is an arithmetic number, because the mean of its divisors is an integer number (286183003).

Almost surely, 2^1144664341 is an apocalyptic number.

It is an amenable number.

1144664341 is a deficient number, since it is larger than the sum of its proper divisors (67671).

1144664341 is an equidigital number, since it uses as much as digits as its factorization.

1144664341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67670.

The product of its digits is 27648, while the sum is 34.

The square root of 1144664341 is about 33832.8884519191. Note that the first 3 decimals coincide. The cubic root of 1144664341 is about 1046.0667177982.

The spelling of 1144664341 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, three hundred forty-one".