1121986 has 8 divisors (see below), whose sum is σ = 1756224. Its totient is φ = 536580.

The previous prime is 1121947. The next prime is 1121987. The reversal of 1121986 is 6891211.

It is a happy number.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1121987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12150 + ... + 12241.

It is an arithmetic number, because the mean of its divisors is an integer number (219528).

2^1121986 is an apocalyptic number.

1121986 is a deficient number, since it is larger than the sum of its proper divisors (634238).

1121986 is a wasteful number, since it uses less digits than its factorization.

1121986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24416.

The product of its digits is 864, while the sum is 28.

The square root of 1121986 is about 1059.2384056481. The cubic root of 1121986 is about 103.9112284893.

The spelling of 1121986 in words is "one million, one hundred twenty-one thousand, nine hundred eighty-six".