1318091 has 8 divisors (see below), whose sum is σ = 1357824. Its totient is φ = 1279080.

The previous prime is 1318073. The next prime is 1318099. The reversal of 1318091 is 1908131.

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 1318091 - 2¹⁰ = 1317067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6806 + ... + 6996.

It is an arithmetic number, because the mean of its divisors is an integer number (169728).

2^1318091 is an apocalyptic number.

1318091 is a deficient number, since it is larger than the sum of its proper divisors (39733).

1318091 is a wasteful number, since it uses less digits than its factorization.

1318091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1318091 is about 1148.0814431041. The cubic root of 1318091 is about 109.6432242442.

The spelling of 1318091 in words is "one million, three hundred eighteen thousand, ninety-one".