11916143 has 8 divisors (see below), whose sum is σ = 12172320. Its totient is φ = 11662560.

The previous prime is 11916137. The next prime is 11916161. The reversal of 11916143 is 34161911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11916143 - 2⁴ = 11916127 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 (11916103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10613 + ... + 11681.

It is an arithmetic number, because the mean of its divisors is an integer number (1521540).

Almost surely, 2^11916143 is an apocalyptic number.

11916143 is a deficient number, since it is larger than the sum of its proper divisors (256177).

11916143 is a wasteful number, since it uses less digits than its factorization.

11916143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297.

The product of its digits is 648, while the sum is 26.

The square root of 11916143 is about 3451.9766801066. The cubic root of 11916143 is about 228.4083108711.

The spelling of 11916143 in words is "eleven million, nine hundred sixteen thousand, one hundred forty-three".