1185147513 has 24 divisors (see below), whose sum is σ = 1869079680. Its totient is φ = 717665760.

The previous prime is 1185147487. The next prime is 1185147521. The reversal of 1185147513 is 3157415811.

It is a happy number.

1185147513 is a `hidden beast` number, since 1 + 185 + 1 + 475 + 1 + 3 = 666.

It is not a de Polignac number, because 1185147513 - 2⁹ = 1185147001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1185147563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131568 + ... + 140286.

It is an arithmetic number, because the mean of its divisors is an integer number (77878320).

Almost surely, 2^1185147513 is an apocalyptic number.

It is an amenable number.

1185147513 is a deficient number, since it is larger than the sum of its proper divisors (683932167).

1185147513 is a wasteful number, since it uses less digits than its factorization.

1185147513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109 (or 10106 counting only the distinct ones).

The product of its digits is 16800, while the sum is 36.

The square root of 1185147513 is about 34425.9714895600. The cubic root of 1185147513 is about 1058.2561551975.

The spelling of 1185147513 in words is "one billion, one hundred eighty-five million, one hundred forty-seven thousand, five hundred thirteen".