1154443412 has 24 divisors (see below), whose sum is σ = 2140243560. Its totient is φ = 542981120.

The previous prime is 1154443399. The next prime is 1154443417. The reversal of 1154443412 is 2143444511.

It can be written as a sum of positive squares in 4 ways, for example, as 308564356 + 845879056 = 17566^2 + 29084^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154443417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182462 + ... + 188682.

It is an arithmetic number, because the mean of its divisors is an integer number (89176815).

Almost surely, 2^1154443412 is an apocalyptic number.

It is an amenable number.

1154443412 is a deficient number, since it is larger than the sum of its proper divisors (985800148).

1154443412 is a wasteful number, since it uses less digits than its factorization.

1154443412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8971 (or 8969 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 1154443412 is about 33977.1012889564. The cubic root of 1154443412 is about 1049.0371860344.

Adding to 1154443412 its reverse (2143444511), we get a palindrome (3297887923).

The spelling of 1154443412 in words is "one billion, one hundred fifty-four million, four hundred forty-three thousand, four hundred twelve".