11411661 has 4 divisors (see below), whose sum is σ = 15215552. Its totient is φ = 7607772.

The previous prime is 11411639. The next prime is 11411663. The reversal of 11411661 is 16611411.

11411661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11411661 - 2⁶ = 11411597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11411663) 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, 1901941 + ... + 1901946.

It is an arithmetic number, because the mean of its divisors is an integer number (3803888).

Almost surely, 2^11411661 is an apocalyptic number.

It is an amenable number.

11411661 is a deficient number, since it is larger than the sum of its proper divisors (3803891).

11411661 is an equidigital number, since it uses as much as digits as its factorization.

11411661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803890.

The product of its digits is 144, while the sum is 21.

The square root of 11411661 is about 3378.1150069232. The cubic root of 11411661 is about 225.1384234643.

The spelling of 11411661 in words is "eleven million, four hundred eleven thousand, six hundred sixty-one".