11388147 has 16 divisors (see below), whose sum is σ = 16422912. Its totient is φ = 6992000.

The previous prime is 11388137. The next prime is 11388161. The reversal of 11388147 is 74188311.

11388147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11388147 - 2⁷ = 11388019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11388127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22 + ... + 4772.

It is an arithmetic number, because the mean of its divisors is an integer number (1026432).

Almost surely, 2^11388147 is an apocalyptic number.

11388147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11388147 is a deficient number, since it is larger than the sum of its proper divisors (5034765).

11388147 is a wasteful number, since it uses less digits than its factorization.

11388147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818.

The product of its digits is 5376, while the sum is 33.

The square root of 11388147 is about 3374.6328689207. The cubic root of 11388147 is about 224.9836827673.

The spelling of 11388147 in words is "eleven million, three hundred eighty-eight thousand, one hundred forty-seven".