11912 has 8 divisors (see below), whose sum is σ = 22350. Its totient is φ = 5952.

The previous prime is 11909. The next prime is 11923. The reversal of 11912 is 21911.

It can be written as a sum of positive squares in only one way, i.e., 11236 + 676 = 106^2 + 26^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 737 + ... + 752.

2¹¹⁹¹² is an apocalyptic number.

It is an amenable number.

11912 is a deficient number, since it is larger than the sum of its proper divisors (10438).

11912 is a wasteful number, since it uses less digits than its factorization.

11912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495 (or 1491 counting only the distinct ones).

The product of its digits is 18, while the sum is 14.

The square root of 11912 is about 109.1421091971. The cubic root of 11912 is about 22.8381836832.

Subtracting 11912 from its reverse (21911), we obtain a palindrome (9999).

It can be divided in two parts, 119 and 12, that added together give a palindrome (131).

The spelling of 11912 in words is "eleven thousand, nine hundred twelve".