1136394665 has 16 divisors (see below), whose sum is σ = 1650160512. Its totient is φ = 733403904.

The previous prime is 1136394659. The next prime is 1136394671. The reversal of 1136394665 is 5664936311.

It is an interprime number because it is at equal distance from previous prime (1136394659) and next prime (1136394671).

It is a cyclic number.

It is not a de Polignac number, because 1136394665 - 2¹⁰ = 1136393641 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 954359 + ... + 955548.

It is an arithmetic number, because the mean of its divisors is an integer number (103135032).

Almost surely, 2^1136394665 is an apocalyptic number.

It is an amenable number.

1136394665 is a deficient number, since it is larger than the sum of its proper divisors (513765847).

1136394665 is a wasteful number, since it uses less digits than its factorization.

1136394665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909936.

The product of its digits is 349920, while the sum is 44.

The square root of 1136394665 is about 33710.4533490726. The cubic root of 1136394665 is about 1043.5415090753.

The spelling of 1136394665 in words is "one billion, one hundred thirty-six million, three hundred ninety-four thousand, six hundred sixty-five".