1145313444 has 48 divisors (see below), whose sum is σ = 2943682560. Its totient is φ = 343691040.

The previous prime is 1145313427. The next prime is 1145313461. The reversal of 1145313444 is 4443135411.

It is an interprime number because it is at equal distance from previous prime (1145313427) and next prime (1145313461).

It is a super-2 number, since 2×1145313444² = 2623485770014282272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28524 + ... + 55715.

It is an arithmetic number, because the mean of its divisors is an integer number (61326720).

Almost surely, 2^1145313444 is an apocalyptic number.

It is an amenable number.

1145313444 is an abundant number, since it is smaller than the sum of its proper divisors (1798369116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145313444 is a wasteful number, since it uses less digits than its factorization.

1145313444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84360 (or 84358 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 1145313444 is about 33842.4798736736. The cubic root of 1145313444 is about 1046.2644109016.

Adding to 1145313444 its reverse (4443135411), we get a palindrome (5588448855).

The spelling of 1145313444 in words is "one billion, one hundred forty-five million, three hundred thirteen thousand, four hundred forty-four".