1200049 has 4 divisors (see below), whose sum is σ = 1241460. Its totient is φ = 1158640.

The previous prime is 1200007. The next prime is 1200061. The reversal of 1200049 is 9400021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 664225 + 535824 = 815^2 + 732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200049 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20662 + ... + 20719.

It is an arithmetic number, because the mean of its divisors is an integer number (310365).

2^1200049 is an apocalyptic number.

It is an amenable number.

1200049 is a deficient number, since it is larger than the sum of its proper divisors (41411).

1200049 is an equidigital number, since it uses as much as digits as its factorization.

1200049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41410.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1200049 is about 1095.4674801198. The cubic root of 1200049 is about 106.2673032950.

The spelling of 1200049 in words is "one million, two hundred thousand, forty-nine".