1145312444 has 12 divisors (see below), whose sum is σ = 2004589104. Its totient is φ = 572572704.

The previous prime is 1145312359. The next prime is 1145312447. The reversal of 1145312444 is 4442135411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145312447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18032 + ... + 51144.

It is an arithmetic number, because the mean of its divisors is an integer number (167049092).

Almost surely, 2^1145312444 is an apocalyptic number.

It is an amenable number.

1145312444 is a deficient number, since it is larger than the sum of its proper divisors (859276660).

1145312444 is a wasteful number, since it uses less digits than its factorization.

1145312444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41764 (or 41762 counting only the distinct ones).

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

The square root of 1145312444 is about 33842.4650993393. The cubic root of 1145312444 is about 1046.2641063955.

Adding to 1145312444 its reverse (4442135411), we get a palindrome (5587447855).

The spelling of 1145312444 in words is "one billion, one hundred forty-five million, three hundred twelve thousand, four hundred forty-four".