1199985 has 8 divisors (see below), whose sum is σ = 1920000. Its totient is φ = 639984.

The previous prime is 1199969. The next prime is 1199993. The reversal of 1199985 is 5899911.

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

It is not a de Polignac number, because 1199985 - 2⁴ = 1199969 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39985 + ... + 40014.

It is an arithmetic number, because the mean of its divisors is an integer number (240000).

2^1199985 is an apocalyptic number.

1199985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1199985 is a deficient number, since it is larger than the sum of its proper divisors (720015).

1199985 is an equidigital number, since it uses as much as digits as its factorization.

1199985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80007.

The product of its digits is 29160, while the sum is 42.

The square root of 1199985 is about 1095.4382684570. The cubic root of 1199985 is about 106.2654141420.

The spelling of 1199985 in words is "one million, one hundred ninety-nine thousand, nine hundred eighty-five".