11147155 has 8 divisors (see below), whose sum is σ = 14163552. Its totient is φ = 8393088.

The previous prime is 11147141. The next prime is 11147159. The reversal of 11147155 is 55174111.

11147155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11147155 - 2¹¹ = 11145107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11147159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65487 + ... + 65656.

It is an arithmetic number, because the mean of its divisors is an integer number (1770444).

Almost surely, 2^11147155 is an apocalyptic number.

11147155 is a deficient number, since it is larger than the sum of its proper divisors (3016397).

11147155 is a wasteful number, since it uses less digits than its factorization.

11147155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131165.

The product of its digits is 700, while the sum is 25.

The square root of 11147155 is about 3338.7355390926. The cubic root of 11147155 is about 223.3853459214.

The spelling of 11147155 in words is "eleven million, one hundred forty-seven thousand, one hundred fifty-five".