11478155 has 32 divisors (see below), whose sum is σ = 15664320. Its totient is φ = 8017920.

The previous prime is 11478149. The next prime is 11478161. The reversal of 11478155 is 55187411.

11478155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11478149) and next prime (11478161).

It is not a de Polignac number, because 11478155 - 2⁸ = 11477899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157199 + ... + 157271.

It is an arithmetic number, because the mean of its divisors is an integer number (489510).

Almost surely, 2^11478155 is an apocalyptic number.

11478155 is a deficient number, since it is larger than the sum of its proper divisors (4186165).

11478155 is a wasteful number, since it uses less digits than its factorization.

11478155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its digits is 5600, while the sum is 32.

The square root of 11478155 is about 3387.9425910130. The cubic root of 11478155 is about 225.5748592422.

The spelling of 11478155 in words is "eleven million, four hundred seventy-eight thousand, one hundred fifty-five".