1275206 has 4 divisors (see below), whose sum is σ = 1912812. Its totient is φ = 637602.

The previous prime is 1275203. The next prime is 1275227. The reversal of 1275206 is 6025721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275203) 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 as a sum of consecutive naturals, namely, 318800 + ... + 318803.

It is an arithmetic number, because the mean of its divisors is an integer number (478203).

2^1275206 is an apocalyptic number.

1275206 is a deficient number, since it is larger than the sum of its proper divisors (637606).

1275206 is an equidigital number, since it uses as much as digits as its factorization.

1275206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637605.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1275206 is about 1129.2501937126. The cubic root of 1275206 is about 108.4409838538.

The spelling of 1275206 in words is "one million, two hundred seventy-five thousand, two hundred six".