1144316649 has 24 divisors (see below), whose sum is σ = 1822836288. Its totient is φ = 636219360.

The previous prime is 1144316647. The next prime is 1144316653. The reversal of 1144316649 is 9466134411.

It is not a de Polignac number, because 1144316649 - 2¹ = 1144316647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144316647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99757 + ... + 110634.

It is an arithmetic number, because the mean of its divisors is an integer number (75951512).

Almost surely, 2^1144316649 is an apocalyptic number.

It is an amenable number.

1144316649 is a deficient number, since it is larger than the sum of its proper divisors (678519639).

1144316649 is a wasteful number, since it uses less digits than its factorization.

1144316649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210445 (or 210438 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 1144316649 is about 33827.7496886802. The cubic root of 1144316649 is about 1045.9607927545.

The spelling of 1144316649 in words is "one billion, one hundred forty-four million, three hundred sixteen thousand, six hundred forty-nine".