1145313300 has 72 divisors (see below), whose sum is σ = 3323572000. Its totient is φ = 304513920.

The previous prime is 1145313289. The next prime is 1145313319. The reversal of 1145313300 is 33135411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99231 + ... + 110169.

Almost surely, 2^1145313300 is an apocalyptic number.

1145313300 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 1145313300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1661786000).

1145313300 is an abundant number, since it is smaller than the sum of its proper divisors (2178258700).

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

1145313300 is a wasteful number, since it uses less digits than its factorization.

1145313300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11305 (or 11298 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1145313300 is about 33842.4777461698. The cubic root of 1145313300 is about 1046.2643670528.

Adding to 1145313300 its reverse (33135411), we get a palindrome (1178448711).

It can be divided in two parts, 11453 and 13300, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 1145313300 in words is "one billion, one hundred forty-five million, three hundred thirteen thousand, three hundred".