11648081 has 4 divisors (see below), whose sum is σ = 11962932. Its totient is φ = 11333232.

The previous prime is 11648071. The next prime is 11648093. The reversal of 11648081 is 18084611.

11648081 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8317456 + 3330625 = 2884^2 + 1825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11648081 is a prime.

It is a super-2 number, since 2×11648081² = 271355581965122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11648041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157370 + ... + 157443.

It is an arithmetic number, because the mean of its divisors is an integer number (2990733).

Almost surely, 2^11648081 is an apocalyptic number.

It is an amenable number.

11648081 is a deficient number, since it is larger than the sum of its proper divisors (314851).

11648081 is an equidigital number, since it uses as much as digits as its factorization.

11648081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314850.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 11648081 is about 3412.9285078946. The cubic root of 11648081 is about 226.6825697704.

The spelling of 11648081 in words is "eleven million, six hundred forty-eight thousand, eighty-one".