11875281 has 32 divisors (see below), whose sum is σ = 18095616. Its totient is φ = 6864000.

The previous prime is 11875243. The next prime is 11875289. The reversal of 11875281 is 18257811.

11875281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11875281 - 2⁶ = 11875217 is a prime.

It is a super-2 number, since 2×11875281² = 282044597657922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11875289) 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 31 ways as a sum of consecutive naturals, for example, 90586 + ... + 90716.

It is an arithmetic number, because the mean of its divisors is an integer number (565488).

Almost surely, 2^11875281 is an apocalyptic number.

11875281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11875281 is a deficient number, since it is larger than the sum of its proper divisors (6220335).

11875281 is a wasteful number, since it uses less digits than its factorization.

11875281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its digits is 4480, while the sum is 33.

The square root of 11875281 is about 3446.0529595466. The cubic root of 11875281 is about 228.1469312999.

The spelling of 11875281 in words is "eleven million, eight hundred seventy-five thousand, two hundred eighty-one".