1200025 has 12 divisors (see below), whose sum is σ = 1553472. Its totient is φ = 917840.

The previous prime is 1200007. The next prime is 1200061. The reversal of 1200025 is 5200021.

It is not a de Polignac number, because 1200025 - 2⁵ = 1199993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1199984 and 1200020.

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 11 ways as a sum of consecutive naturals, for example, 469 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (129456).

2^1200025 is an apocalyptic number.

It is an amenable number.

1200025 is a deficient number, since it is larger than the sum of its proper divisors (353447).

1200025 is a wasteful number, since it uses less digits than its factorization.

1200025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 1200025 is about 1095.4565258375. The cubic root of 1200025 is about 106.2665948705.

Adding to 1200025 its reverse (5200021), we get a palindrome (6400046).

The spelling of 1200025 in words is "one million, two hundred thousand, twenty-five".