1145712200 has 48 divisors (see below), whose sum is σ = 2728770660. Its totient is φ = 447104000.

The previous prime is 1145712181. The next prime is 1145712203. The reversal of 1145712200 is 22175411.

It can be written as a sum of positive squares in 6 ways, for example, as 287573764 + 858138436 = 16958^2 + 29294^2 .

It is not an unprimeable number, because it can be changed into a prime (1145712203) 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 11 ways as a sum of consecutive naturals, for example, 61661 + ... + 78060.

Almost surely, 2^1145712200 is an apocalyptic number.

1145712200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145712200 is an abundant number, since it is smaller than the sum of its proper divisors (1583058460).

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

1145712200 is a wasteful number, since it uses less digits than its factorization.

1145712200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139778 (or 139769 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1145712200 is about 33848.3707141127. The cubic root of 1145712200 is about 1046.3858204030.

Adding to 1145712200 its reverse (22175411), we get a palindrome (1167887611).

The spelling of 1145712200 in words is "one billion, one hundred forty-five million, seven hundred twelve thousand, two hundred".