1121830 has 16 divisors (see below), whose sum is σ = 2138400. Its totient is φ = 422272.

The previous prime is 1121819. The next prime is 1121831. The reversal of 1121830 is 381211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3130 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (133650).

2^1121830 is an apocalyptic number.

1121830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121830 is a deficient number, since it is larger than the sum of its proper divisors (1016570).

1121830 is a wasteful number, since it uses less digits than its factorization.

1121830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6623.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1121830 is about 1059.1647652750. The cubic root of 1121830 is about 103.9064123558.

The spelling of 1121830 in words is "one million, one hundred twenty-one thousand, eight hundred thirty".