1273206 has 32 divisors (see below), whose sum is σ = 2820096. Its totient is φ = 380000.

The previous prime is 1273199. The next prime is 1273213. The reversal of 1273206 is 6023721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1273199) and next prime (1273213).

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 15 ways as a sum of consecutive naturals, for example, 6571 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (88128).

2^1273206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1273206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410048).

1273206 is an abundant number, since it is smaller than the sum of its proper divisors (1546890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1273206 is a wasteful number, since it uses less digits than its factorization.

1273206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1273206 is about 1128.3643028739. The cubic root of 1273206 is about 108.3842621815.

Adding to 1273206 its reverse (6023721), we get a palindrome (7296927).

It can be divided in two parts, 127 and 3206, that added together give a palindrome (3333).

The spelling of 1273206 in words is "one million, two hundred seventy-three thousand, two hundred six".