11081590 has 16 divisors (see below), whose sum is σ = 21481488. Its totient is φ = 4091616.

The previous prime is 11081563. The next prime is 11081591. The reversal of 11081590 is 9518011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11081591) 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 7 ways as a sum of consecutive naturals, for example, 42492 + ... + 42751.

It is an arithmetic number, because the mean of its divisors is an integer number (1342593).

Almost surely, 2^11081590 is an apocalyptic number.

11081590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11081590 is a deficient number, since it is larger than the sum of its proper divisors (10399898).

11081590 is a wasteful number, since it uses less digits than its factorization.

11081590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85263.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 11081590 is about 3328.9022214538. The cubic root of 11081590 is about 222.9465173678.

The spelling of 11081590 in words is "eleven million, eighty-one thousand, five hundred ninety".