11843161 has 4 divisors (see below), whose sum is σ = 12919824. Its totient is φ = 10766500.

The previous prime is 11843149. The next prime is 11843171. The reversal of 11843161 is 16134811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11843161 - 2¹³ = 11834969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11843171) 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 3 ways as a sum of consecutive naturals, for example, 538315 + ... + 538336.

It is an arithmetic number, because the mean of its divisors is an integer number (3229956).

Almost surely, 2^11843161 is an apocalyptic number.

11843161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11843161 is the 1840-th centered heptagonal number.

It is an amenable number.

11843161 is a deficient number, since it is larger than the sum of its proper divisors (1076663).

11843161 is a wasteful number, since it uses less digits than its factorization.

11843161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076662.

The product of its digits is 576, while the sum is 25.

The square root of 11843161 is about 3441.3893996466. The cubic root of 11843161 is about 227.9410499592.

Adding to 11843161 its reverse (16134811), we get a palindrome (27977972).

The spelling of 11843161 in words is "eleven million, eight hundred forty-three thousand, one hundred sixty-one".