1200118 has 8 divisors (see below), whose sum is σ = 1805112. Its totient is φ = 598416.

The previous prime is 1200109. The next prime is 1200139. The reversal of 1200118 is 8110021.

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

It is an Ulam number.

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 1200098 and 1200107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (225639).

2^1200118 is an apocalyptic number.

1200118 is a deficient number, since it is larger than the sum of its proper divisors (604994).

1200118 is a wasteful number, since it uses less digits than its factorization.

1200118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1200118 is about 1095.4989730712. The cubic root of 1200118 is about 106.2693399627.

Adding to 1200118 its reverse (8110021), we get a palindrome (9310139).

Subtracting 1200118 from its reverse (8110021), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1200118 in words is "one million, two hundred thousand, one hundred eighteen".