11845131 has 16 divisors (see below), whose sum is σ = 16555008. Its totient is φ = 7524000.

The previous prime is 11845123. The next prime is 11845133. The reversal of 11845131 is 13154811.

It is not a de Polignac number, because 11845131 - 2³ = 11845123 is a prime.

It is a super-2 number, since 2×11845131² = 280614256814322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11845133) 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 15 ways as a sum of consecutive naturals, for example, 5281 + ... + 7181.

It is an arithmetic number, because the mean of its divisors is an integer number (1034688).

Almost surely, 2^11845131 is an apocalyptic number.

11845131 is a deficient number, since it is larger than the sum of its proper divisors (4709877).

11845131 is a wasteful number, since it uses less digits than its factorization.

11845131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its digits is 480, while the sum is 24.

The square root of 11845131 is about 3441.6756093508. The cubic root of 11845131 is about 227.9536878850.

Adding to 11845131 its reverse (13154811), we get a palindrome (24999942).

The spelling of 11845131 in words is "eleven million, eight hundred forty-five thousand, one hundred thirty-one".