11526131 has 2 divisors, whose sum is σ = 11526132. Its totient is φ = 11526130.

The previous prime is 11526121. The next prime is 11526143. The reversal of 11526131 is 13162511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11526131 is a prime.

It is a super-2 number, since 2×11526131² = 265703391658322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11526121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5763065 + 5763066.

It is an arithmetic number, because the mean of its divisors is an integer number (5763066).

Almost surely, 2^11526131 is an apocalyptic number.

11526131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11526131 is an equidigital number, since it uses as much as digits as its factorization.

11526131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 20.

The square root of 11526131 is about 3395.0156111570. The cubic root of 11526131 is about 225.8887057417. Note that the first 3 decimals are identical.

Adding to 11526131 its reverse (13162511), we get a palindrome (24688642).

The spelling of 11526131 in words is "eleven million, five hundred twenty-six thousand, one hundred thirty-one".