1161136 has 20 divisors (see below), whose sum is σ = 2323264. Its totient is φ = 561600.

The previous prime is 1161113. The next prime is 1161137. The reversal of 1161136 is 6311611.

1161136 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675 + ... + 1666.

2^1161136 is an apocalyptic number.

1161136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1161136 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161136 is a wasteful number, since it uses less digits than its factorization.

1161136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380 (or 2374 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

The square root of 1161136 is about 1077.5602071346. The cubic root of 1161136 is about 105.1060455457.

Adding to 1161136 its reverse (6311611), we get a palindrome (7472747).

The spelling of 1161136 in words is "one million, one hundred sixty-one thousand, one hundred thirty-six".