11983261 has 4 divisors (see below), whose sum is σ = 12238272. Its totient is φ = 11728252.

The previous prime is 11983259. The next prime is 11983277. The reversal of 11983261 is 16238911.

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 11983261 - 2¹ = 11983259 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 (11983201) 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, 127435 + ... + 127528.

It is an arithmetic number, because the mean of its divisors is an integer number (3059568).

Almost surely, 2^11983261 is an apocalyptic number.

It is an amenable number.

11983261 is a deficient number, since it is larger than the sum of its proper divisors (255011).

11983261 is an equidigital number, since it uses as much as digits as its factorization.

11983261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255010.

The product of its digits is 2592, while the sum is 31.

The square root of 11983261 is about 3461.6847054577. The cubic root of 11983261 is about 228.8363469100.

The spelling of 11983261 in words is "eleven million, nine hundred eighty-three thousand, two hundred sixty-one".