1265806 has 8 divisors (see below), whose sum is σ = 1904760. Its totient is φ = 630888.

The previous prime is 1265801. The next prime is 1265813. The reversal of 1265806 is 6085621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36 + ... + 1591.

It is an arithmetic number, because the mean of its divisors is an integer number (238095).

2^1265806 is an apocalyptic number.

1265806 is a deficient number, since it is larger than the sum of its proper divisors (638954).

1265806 is a wasteful number, since it uses less digits than its factorization.

1265806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1265806 is about 1125.0804415685. The cubic root of 1265806 is about 108.1738740146.

The spelling of 1265806 in words is "one million, two hundred sixty-five thousand, eight hundred six".