11141509 has 2 divisors, whose sum is σ = 11141510. Its totient is φ = 11141508.

The previous prime is 11141503. The next prime is 11141513. The reversal of 11141509 is 90514111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9628609 + 1512900 = 3103^2 + 1230^2 .

It is a cyclic number.

It is not a de Polignac number, because 11141509 - 2¹⁷ = 11010437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11141509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11141503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5570754 + 5570755.

It is an arithmetic number, because the mean of its divisors is an integer number (5570755).

Almost surely, 2^11141509 is an apocalyptic number.

It is an amenable number.

11141509 is a deficient number, since it is larger than the sum of its proper divisors (1).

11141509 is an equidigital number, since it uses as much as digits as its factorization.

11141509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 11141509 is about 3337.8899023185. The cubic root of 11141509 is about 223.3476248868.

The spelling of 11141509 in words is "eleven million, one hundred forty-one thousand, five hundred nine".