11867136 has 44 divisors (see below), whose sum is σ = 31638432. Its totient is φ = 3954688.

The previous prime is 11867131. The next prime is 11867137. The reversal of 11867136 is 63176811.

It is a junction number, because it is equal to n+sod(n) for n = 11867097 and 11867106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11867131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141 + ... + 5003.

Almost surely, 2^11867136 is an apocalyptic number.

11867136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11867136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15819216).

11867136 is an abundant number, since it is smaller than the sum of its proper divisors (19771296).

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

11867136 is an equidigital number, since it uses as much as digits as its factorization.

11867136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886 (or 3868 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 11867136 is about 3444.8709700074. The cubic root of 11867136 is about 228.0947590113.

The spelling of 11867136 in words is "eleven million, eight hundred sixty-seven thousand, one hundred thirty-six".