1136135521 has 2 divisors, whose sum is σ = 1136135522. Its totient is φ = 1136135520.

The previous prime is 1136135519. The next prime is 1136135563. The reversal of 1136135521 is 1255316311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 648211600 + 487923921 = 25460^2 + 22089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1136135521 - 2¹ = 1136135519 is a prime.

Together with 1136135519, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1136135521.

It is not a weakly prime, because it can be changed into another prime (1136135321) 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 as a sum of consecutive naturals, namely, 568067760 + 568067761.

It is an arithmetic number, because the mean of its divisors is an integer number (568067761).

Almost surely, 2^1136135521 is an apocalyptic number.

It is an amenable number.

1136135521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136135521 is an equidigital number, since it uses as much as digits as its factorization.

1136135521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 28.

The square root of 1136135521 is about 33706.6094557136. The cubic root of 1136135521 is about 1043.4621798047.

The spelling of 1136135521 in words is "one billion, one hundred thirty-six million, one hundred thirty-five thousand, five hundred twenty-one".