1200265 has 16 divisors (see below), whose sum is σ = 1592640. Its totient is φ = 861120.

The previous prime is 1200253. The next prime is 1200307. The reversal of 1200265 is 5620021.

It is a happy number.

It is not a de Polignac number, because 1200265 - 2⁵ = 1200233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7567 + ... + 7723.

It is an arithmetic number, because the mean of its divisors is an integer number (99540).

2^1200265 is an apocalyptic number.

It is an amenable number.

1200265 is a deficient number, since it is larger than the sum of its proper divisors (392375).

1200265 is a wasteful number, since it uses less digits than its factorization.

1200265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1200265 is about 1095.5660637314. The cubic root of 1200265 is about 106.2736786903.

Adding to 1200265 its reverse (5620021), we get a palindrome (6820286).

The spelling of 1200265 in words is "one million, two hundred thousand, two hundred sixty-five".