11938143 has 16 divisors (see below), whose sum is σ = 18252800. Its totient is φ = 6798816.

The previous prime is 11938109. The next prime is 11938151. The reversal of 11938143 is 34183911.

It is not a de Polignac number, because 11938143 - 2⁶ = 11938079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11938143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11938103) 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, 6933 + ... + 8481.

It is an arithmetic number, because the mean of its divisors is an integer number (1140800).

Almost surely, 2^11938143 is an apocalyptic number.

11938143 is a deficient number, since it is larger than the sum of its proper divisors (6314657).

11938143 is a wasteful number, since it uses less digits than its factorization.

11938143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926.

The product of its digits is 2592, while the sum is 30.

The square root of 11938143 is about 3455.1617907126. The cubic root of 11938143 is about 228.5487895919.

The spelling of 11938143 in words is "eleven million, nine hundred thirty-eight thousand, one hundred forty-three".