1123090 has 32 divisors (see below), whose sum is σ = 2229120. Its totient is φ = 405504.

The previous prime is 1123081. The next prime is 1123093. The reversal of 1123090 is 903211.

It is a super-2 number, since 2×1123090² = 2522662296200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4242 + ... + 4498.

It is an arithmetic number, because the mean of its divisors is an integer number (69660).

2^1123090 is an apocalyptic number.

1123090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123090 is a deficient number, since it is larger than the sum of its proper divisors (1106030).

1123090 is a wasteful number, since it uses less digits than its factorization.

1123090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1123090 is about 1059.7594066579. The cubic root of 1123090 is about 103.9452991433.

The spelling of 1123090 in words is "one million, one hundred twenty-three thousand, ninety".