1145275760 has 60 divisors (see below), whose sum is σ = 2729421288. Its totient is φ = 446681088.

The previous prime is 1145275723. The next prime is 1145275783. The reversal of 1145275760 is 675725411.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1984592 + ... + 1985168.

Almost surely, 2^1145275760 is an apocalyptic number.

1145275760 is a gapful number since it is divisible by the number (10) 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 1145275760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1364710644).

1145275760 is an abundant number, since it is smaller than the sum of its proper divisors (1584145528).

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

1145275760 is an frugal number, since it uses more digits than its factorization.

1145275760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 1145275760 is about 33841.9231132038. The cubic root of 1145275760 is about 1046.2529357721.

The spelling of 1145275760 in words is "one billion, one hundred forty-five million, two hundred seventy-five thousand, seven hundred sixty".