1311395 has 8 divisors (see below), whose sum is σ = 1580256. Its totient is φ = 1044736.

The previous prime is 1311383. The next prime is 1311403. The reversal of 1311395 is 5931131.

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 1311395 - 2¹⁰ = 1310371 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311395.

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 7 ways as a sum of consecutive naturals, for example, 1394 + ... + 2136.

It is an arithmetic number, because the mean of its divisors is an integer number (197532).

2^1311395 is an apocalyptic number.

1311395 is a deficient number, since it is larger than the sum of its proper divisors (268861).

1311395 is an equidigital number, since it uses as much as digits as its factorization.

1311395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its digits is 405, while the sum is 23.

The square root of 1311395 is about 1145.1615606542. The cubic root of 1311395 is about 109.4572437202.

The spelling of 1311395 in words is "one million, three hundred eleven thousand, three hundred ninety-five".