1266395 has 8 divisors (see below), whose sum is σ = 1636656. Its totient is φ = 935136.

The previous prime is 1266389. The next prime is 1266409. The reversal of 1266395 is 5936621.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1266395 - 2⁴ = 1266379 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9677 + ... + 9806.

It is an arithmetic number, because the mean of its divisors is an integer number (204582).

2^1266395 is an apocalyptic number.

1266395 is a deficient number, since it is larger than the sum of its proper divisors (370261).

1266395 is a wasteful number, since it uses less digits than its factorization.

1266395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19501.

The product of its digits is 9720, while the sum is 32.

The square root of 1266395 is about 1125.3421701865. The cubic root of 1266395 is about 108.1906497638.

It can be divided in two parts, 1266 and 395, that added together give a palindrome (1661).

The spelling of 1266395 in words is "one million, two hundred sixty-six thousand, three hundred ninety-five".