1317901 has 4 divisors (see below), whose sum is σ = 1419292. Its totient is φ = 1216512.

The previous prime is 1317887. The next prime is 1317917. The reversal of 1317901 is 1097131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1097131 = 7 ⋅156733.

It can be written as a sum of positive squares in 2 ways, for example, as 756900 + 561001 = 870^2 + 749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1317901 - 2⁷ = 1317773 is a prime.

It is a Duffinian number.

1317901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317941) 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, 50676 + ... + 50701.

It is an arithmetic number, because the mean of its divisors is an integer number (354823).

2^1317901 is an apocalyptic number.

It is an amenable number.

1317901 is a deficient number, since it is larger than the sum of its proper divisors (101391).

1317901 is a wasteful number, since it uses less digits than its factorization.

1317901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101390.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 1317901 is about 1147.9986933790. The cubic root of 1317901 is about 109.6379557122.

The spelling of 1317901 in words is "one million, three hundred seventeen thousand, nine hundred one".