11105990 has 16 divisors (see below), whose sum is σ = 22846752. Its totient is φ = 3807744.

The previous prime is 11105923. The next prime is 11106037. The reversal of 11105990 is 9950111.

It is a happy number.

It is a congruent 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, 79259 + ... + 79398.

It is an arithmetic number, because the mean of its divisors is an integer number (1427922).

Almost surely, 2^11105990 is an apocalyptic number.

11105990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11105990 is an abundant number, since it is smaller than the sum of its proper divisors (11740762).

11105990 is a wasteful number, since it uses less digits than its factorization.

11105990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158671.

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

The square root of 11105990 is about 3332.5650781343. The cubic root of 11105990 is about 223.1100290206.

The spelling of 11105990 in words is "eleven million, one hundred five thousand, nine hundred ninety".