1145564112 has 240 divisors, whose sum is σ = 3915860480. Its totient is φ = 281698560.

The previous prime is 1145564099. The next prime is 1145564117. The reversal of 1145564112 is 2114655411.

It is a self number, because there is not a number n which added to its sum of digits gives 1145564112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145564117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 771723 + ... + 773205.

Almost surely, 2^1145564112 is an apocalyptic number.

1145564112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145564112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957930240).

1145564112 is an abundant number, since it is smaller than the sum of its proper divisors (2770296368).

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

1145564112 is a wasteful number, since it uses less digits than its factorization.

1145564112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1525 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The square root of 1145564112 is about 33846.1831230643. The cubic root of 1145564112 is about 1046.3407352411.

The spelling of 1145564112 in words is "one billion, one hundred forty-five million, five hundred sixty-four thousand, one hundred twelve".