11591090 has 16 divisors (see below), whose sum is σ = 23844672. Its totient is φ = 3974064.

The previous prime is 11591089. The next prime is 11591113. The reversal of 11591090 is 9019511.

It is a happy number.

It is an unprimeable number.

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, 82724 + ... + 82863.

It is an arithmetic number, because the mean of its divisors is an integer number (1490292).

Almost surely, 2^11591090 is an apocalyptic number.

11591090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11591090 is an abundant number, since it is smaller than the sum of its proper divisors (12253582).

11591090 is a wasteful number, since it uses less digits than its factorization.

11591090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165601.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 11591090 is about 3404.5689888736. The cubic root of 11591090 is about 226.3122657598.

The spelling of 11591090 in words is "eleven million, five hundred ninety-one thousand, ninety".