11946143 has 16 divisors (see below), whose sum is σ = 13478400. Its totient is φ = 10495680.

The previous prime is 11946139. The next prime is 11946161. The reversal of 11946143 is 34164911.

11946143 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 11946143 - 2² = 11946139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11946133) 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 15 ways as a sum of consecutive naturals, for example, 51155 + ... + 51387.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^11946143 is an apocalyptic number.

11946143 is a deficient number, since it is larger than the sum of its proper divisors (1532257).

11946143 is a wasteful number, since it uses less digits than its factorization.

11946143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its digits is 2592, while the sum is 29.

The square root of 11946143 is about 3456.3192850198. The cubic root of 11946143 is about 228.5998299715.

It can be divided in two parts, 1194 and 6143, that added together give a palindrome (7337).

The spelling of 11946143 in words is "eleven million, nine hundred forty-six thousand, one hundred forty-three".