11559481 has 2 divisors, whose sum is σ = 11559482. Its totient is φ = 11559480.

The previous prime is 11559479. The next prime is 11559491. The reversal of 11559481 is 18495511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8173881 + 3385600 = 2859^2 + 1840^2 .

It is a cyclic number.

It is not a de Polignac number, because 11559481 - 2¹ = 11559479 is a prime.

It is a super-2 number, since 2×11559481² = 267243201978722, which contains 22 as substring.

Together with 11559479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11559451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5779740 + 5779741.

It is an arithmetic number, because the mean of its divisors is an integer number (5779741).

Almost surely, 2^11559481 is an apocalyptic number.

It is an amenable number.

11559481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11559481 is an equidigital number, since it uses as much as digits as its factorization.

11559481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 34.

The square root of 11559481 is about 3399.9236756139. The cubic root of 11559481 is about 226.1063599927.

The spelling of 11559481 in words is "eleven million, five hundred fifty-nine thousand, four hundred eighty-one".