1123490 has 8 divisors (see below), whose sum is σ = 2022300. Its totient is φ = 449392.

The previous prime is 1123487. The next prime is 1123501. The reversal of 1123490 is 943211.

It can be written as a sum of positive squares in 2 ways, for example, as 1117249 + 6241 = 1057^2 + 79^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56165 + ... + 56184.

2^1123490 is an apocalyptic number.

1123490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123490 is a deficient number, since it is larger than the sum of its proper divisors (898810).

1123490 is a wasteful number, since it uses less digits than its factorization.

1123490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112356.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1123490 is about 1059.9481119376. The cubic root of 1123490 is about 103.9576380727.

The spelling of 1123490 in words is "one million, one hundred twenty-three thousand, four hundred ninety".