1145112300 has 54 divisors (see below), whose sum is σ = 3589293708. Its totient is φ = 305363040.

The previous prime is 1145112229. The next prime is 1145112301. The reversal of 1145112300 is 32115411.

It is a super-2 number, since 2×1145112300² = 2622564359222580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1145112301) 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 17 ways as a sum of consecutive naturals, for example, 635274 + ... + 637073.

It is an arithmetic number, because the mean of its divisors is an integer number (66468402).

Almost surely, 2^1145112300 is an apocalyptic number.

1145112300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145112300 is an abundant number, since it is smaller than the sum of its proper divisors (2444181408).

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

1145112300 is a wasteful number, since it uses less digits than its factorization.

1145112300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272367 (or 1272357 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1145112300 is about 33839.5079751464. The cubic root of 1145112300 is about 1046.2031577629.

Adding to 1145112300 its reverse (32115411), we get a palindrome (1177227711).

The spelling of 1145112300 in words is "one billion, one hundred forty-five million, one hundred twelve thousand, three hundred".