1136400765 has 32 divisors (see below), whose sum is σ = 1843623936. Its totient is φ = 597679680.

The previous prime is 1136400763. The next prime is 1136400779. The reversal of 1136400765 is 5670046311.

It is not a de Polignac number, because 1136400765 - 2¹ = 1136400763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136400763) 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 31 ways as a sum of consecutive naturals, for example, 326424 + ... + 329886.

It is an arithmetic number, because the mean of its divisors is an integer number (57613248).

Almost surely, 2^1136400765 is an apocalyptic number.

1136400765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1136400765 is a deficient number, since it is larger than the sum of its proper divisors (707223171).

1136400765 is a wasteful number, since it uses less digits than its factorization.

1136400765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1136400765 is about 33710.5438253375. The cubic root of 1136400765 is about 1043.5433762645.

The spelling of 1136400765 in words is "one billion, one hundred thirty-six million, four hundred thousand, seven hundred sixty-five".