11531141 has 2 divisors, whose sum is σ = 11531142. Its totient is φ = 11531140.

The previous prime is 11531131. The next prime is 11531147. The reversal of 11531141 is 14113511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11082241 + 448900 = 3329^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 11531141 - 2¹⁰ = 11530117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11531147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765570 + 5765571.

It is an arithmetic number, because the mean of its divisors is an integer number (5765571).

Almost surely, 2^11531141 is an apocalyptic number.

It is an amenable number.

11531141 is a deficient number, since it is larger than the sum of its proper divisors (1).

11531141 is an equidigital number, since it uses as much as digits as its factorization.

11531141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60, while the sum is 17.

The square root of 11531141 is about 3395.7533773818. The cubic root of 11531141 is about 225.9214296015.

Adding to 11531141 its reverse (14113511), we get a palindrome (25644652).

The spelling of 11531141 in words is "eleven million, five hundred thirty-one thousand, one hundred forty-one".