1136865 has 16 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 574272.

The previous prime is 1136843. The next prime is 1136869. The reversal of 1136865 is 5686311.

It is not a de Polignac number, because 1136865 - 2⁵ = 1136833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1136869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710 + ... + 2279.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^1136865 is an apocalyptic number.

1136865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1136865 is a deficient number, since it is larger than the sum of its proper divisors (778335).

1136865 is a wasteful number, since it uses less digits than its factorization.

1136865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016.

The product of its digits is 4320, while the sum is 30.

The square root of 1136865 is about 1066.2387162357. The cubic root of 1136865 is about 104.3685457421.

The spelling of 1136865 in words is "one million, one hundred thirty-six thousand, eight hundred sixty-five".