11155641 has 32 divisors (see below), whose sum is σ = 18186240. Its totient is φ = 5940864.

The previous prime is 11155637. The next prime is 11155643. The reversal of 11155641 is 14655111.

11155641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11155641 - 2² = 11155637 is a prime.

It is a super-2 number, since 2×11155641² = 248896652241762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11155643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28936 + ... + 29318.

It is an arithmetic number, because the mean of its divisors is an integer number (568320).

Almost surely, 2^11155641 is an apocalyptic number.

It is an amenable number.

11155641 is a deficient number, since it is larger than the sum of its proper divisors (7030599).

11155641 is a wasteful number, since it uses less digits than its factorization.

11155641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

The product of its digits is 600, while the sum is 24.

The square root of 11155641 is about 3340.0061377189. The cubic root of 11155641 is about 223.4420170994.

The spelling of 11155641 in words is "eleven million, one hundred fifty-five thousand, six hundred forty-one".