1136513511 has 20 divisors (see below), whose sum is σ = 1940292112. Its totient is φ = 649435968.

The previous prime is 1136513473. The next prime is 1136513527. The reversal of 1136513511 is 1153156311.

It is a happy number.

1136513511 is a `hidden beast` number, since 1 + 1 + 3 + 651 + 3 + 5 + 1 + 1 = 666.

It is not a de Polignac number, because 1136513511 - 2¹¹ = 1136511463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136513591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1001650 + ... + 1002783.

Almost surely, 2^1136513511 is an apocalyptic number.

1136513511 is a deficient number, since it is larger than the sum of its proper divisors (803778601).

1136513511 is an equidigital number, since it uses as much as digits as its factorization.

1136513511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004452 (or 2004443 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 1136513511 is about 33712.2160499722. The cubic root of 1136513511 is about 1043.5778862292.

Adding to 1136513511 its reverse (1153156311), we get a palindrome (2289669822).

The spelling of 1136513511 in words is "one billion, one hundred thirty-six million, five hundred thirteen thousand, five hundred eleven".