11169481 has 4 divisors (see below), whose sum is σ = 11178000. Its totient is φ = 11160964.

The previous prime is 11169479. The next prime is 11169491. The reversal of 11169481 is 18496111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11169481 - 2¹ = 11169479 is a prime.

It is a super-2 number, since 2×11169481² = 249514611618722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11169491) 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 in 3 ways as a sum of consecutive naturals, for example, 1831 + ... + 5068.

It is an arithmetic number, because the mean of its divisors is an integer number (2794500).

Almost surely, 2^11169481 is an apocalyptic number.

It is an amenable number.

11169481 is a deficient number, since it is larger than the sum of its proper divisors (8519).

11169481 is an equidigital number, since it uses as much as digits as its factorization.

11169481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8518.

The product of its digits is 1728, while the sum is 31.

The square root of 11169481 is about 3342.0773479978. The cubic root of 11169481 is about 223.5343817169.

The spelling of 11169481 in words is "eleven million, one hundred sixty-nine thousand, four hundred eighty-one".