11512481 has 2 divisors, whose sum is σ = 11512482. Its totient is φ = 11512480.

The previous prime is 11512427. The next prime is 11512531. The reversal of 11512481 is 18421511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8904256 + 2608225 = 2984^2 + 1615^2 .

It is a cyclic number.

It is not a de Polignac number, because 11512481 - 2¹⁰ = 11511457 is a prime.

It is a super-2 number, since 2×11512481² = 265074437550722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11512981) 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 as a sum of consecutive naturals, namely, 5756240 + 5756241.

It is an arithmetic number, because the mean of its divisors is an integer number (5756241).

Almost surely, 2^11512481 is an apocalyptic number.

It is an amenable number.

11512481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512481 is an equidigital number, since it uses as much as digits as its factorization.

11512481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 23.

The square root of 11512481 is about 3393.0047155876. The cubic root of 11512481 is about 225.7994997796.

Adding to 11512481 its product of digits (320), we get a triangular number (11512801 = T₄₇₉₈).

Adding to 11512481 its reverse (18421511), we get a palindrome (29933992).

The spelling of 11512481 in words is "eleven million, five hundred twelve thousand, four hundred eighty-one".