11751161 has 4 divisors (see below), whose sum is σ = 11763024. Its totient is φ = 11739300.

The previous prime is 11751143. The next prime is 11751193. The reversal of 11751161 is 16115711.

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 a de Polignac number, because none of the positive numbers 2^k-11751161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11751361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4295 + ... + 6476.

It is an arithmetic number, because the mean of its divisors is an integer number (2940756).

Almost surely, 2^11751161 is an apocalyptic number.

It is an amenable number.

11751161 is a deficient number, since it is larger than the sum of its proper divisors (11863).

11751161 is a wasteful number, since it uses less digits than its factorization.

11751161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11862.

The product of its digits is 210, while the sum is 23.

The square root of 11751161 is about 3427.9966452726. The cubic root of 11751161 is about 227.3492847103.

Adding to 11751161 its sum of digits (23), we get a square (11751184 = 3428²).

Adding to 11751161 its reverse (16115711), we get a palindrome (27866872).

The spelling of 11751161 in words is "eleven million, seven hundred fifty-one thousand, one hundred sixty-one".