11481559 has 8 divisors (see below), whose sum is σ = 11840400. Its totient is φ = 11126976.

The previous prime is 11481553. The next prime is 11481571. The reversal of 11481559 is 95518411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11481559 - 2⁵ = 11481527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4917 + ... + 6865.

It is an arithmetic number, because the mean of its divisors is an integer number (1480050).

Almost surely, 2^11481559 is an apocalyptic number.

11481559 is a deficient number, since it is larger than the sum of its proper divisors (358841).

11481559 is a wasteful number, since it uses less digits than its factorization.

11481559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129.

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

The square root of 11481559 is about 3388.4449235601. Note that the first 3 decimals coincide. The cubic root of 11481559 is about 225.5971561162.

The spelling of 11481559 in words is "eleven million, four hundred eighty-one thousand, five hundred fifty-nine".