11478147 has 16 divisors (see below), whose sum is σ = 16320000. Its totient is φ = 7154784.

The previous prime is 11478143. The next prime is 11478149. The reversal of 11478147 is 74187411.

It is not a de Polignac number, because 11478147 - 2² = 11478143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11478143) 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 15 ways as a sum of consecutive naturals, for example, 3229 + ... + 5777.

It is an arithmetic number, because the mean of its divisors is an integer number (1020000).

Almost surely, 2^11478147 is an apocalyptic number.

11478147 is a deficient number, since it is larger than the sum of its proper divisors (4841853).

11478147 is a wasteful number, since it uses less digits than its factorization.

11478147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650.

The product of its digits is 6272, while the sum is 33.

The square root of 11478147 is about 3387.9414103553. The cubic root of 11478147 is about 225.5748068354.

The spelling of 11478147 in words is "eleven million, four hundred seventy-eight thousand, one hundred forty-seven".