11147238 has 24 divisors (see below), whose sum is σ = 24226176. Its totient is φ = 3704400.

The previous prime is 11147237. The next prime is 11147239. The reversal of 11147238 is 83274111.

It is an interprime number because it is at equal distance from previous prime (11147237) and next prime (11147239).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11147231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6843 + ... + 8313.

It is an arithmetic number, because the mean of its divisors is an integer number (1009424).

Almost surely, 2^11147238 is an apocalyptic number.

11147238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11147238 is an abundant number, since it is smaller than the sum of its proper divisors (13078938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11147238 is a wasteful number, since it uses less digits than its factorization.

11147238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900 (or 1897 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 11147238 is about 3338.7479689249. The cubic root of 11147238 is about 223.3859003510.

The spelling of 11147238 in words is "eleven million, one hundred forty-seven thousand, two hundred thirty-eight".