1391995 has 8 divisors (see below), whose sum is σ = 1822320. Its totient is φ = 1012320.

The previous prime is 1391989. The next prime is 1392007. The reversal of 1391995 is 5991931.

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

It is not a de Polignac number, because 1391995 - 2⁹ = 1391483 is a prime.

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, 12600 + ... + 12709.

It is an arithmetic number, because the mean of its divisors is an integer number (227790).

2^1391995 is an apocalyptic number.

1391995 is a deficient number, since it is larger than the sum of its proper divisors (430325).

1391995 is a wasteful number, since it uses less digits than its factorization.

1391995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25325.

The product of its digits is 10935, while the sum is 37.

The square root of 1391995 is about 1179.8283773499. The cubic root of 1391995 is about 111.6552697460.

The spelling of 1391995 in words is "one million, three hundred ninety-one thousand, nine hundred ninety-five".