1145513133 has 12 divisors (see below), whose sum is σ = 1655115228. Its totient is φ = 763451520.

The previous prime is 1145513123. The next prime is 1145513167. The reversal of 1145513133 is 3313155411.

It is a happy number.

1145513133 is a `hidden beast` number, since 1 + 14 + 5 + 513 + 133 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123943689 + 1021569444 = 11133^2 + 31962^2 .

It is not a de Polignac number, because 1145513133 - 2⁵ = 1145513101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145513097 and 1145513106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145513123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17413 + ... + 50933.

It is an arithmetic number, because the mean of its divisors is an integer number (137926269).

Almost surely, 2^1145513133 is an apocalyptic number.

It is an amenable number.

1145513133 is a deficient number, since it is larger than the sum of its proper divisors (509602095).

1145513133 is a wasteful number, since it uses less digits than its factorization.

1145513133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37324 (or 37321 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1145513133 is about 33845.4300164734. The cubic root of 1145513133 is about 1046.3252138646.

Adding to 1145513133 its reverse (3313155411), we get a palindrome (4458668544).

The spelling of 1145513133 in words is "one billion, one hundred forty-five million, five hundred thirteen thousand, one hundred thirty-three".