1317121 has 8 divisors (see below), whose sum is σ = 1439424. Its totient is φ = 1197840.

The previous prime is 1317119. The next prime is 1317131. The reversal of 1317121 is 1217131.

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 1317121 - 2¹ = 1317119 is a prime.

It is a Duffinian number.

1317121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1317095 and 1317104.

It is not an unprimeable number, because it can be changed into a prime (1317131) 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, 210 + ... + 1636.

It is an arithmetic number, because the mean of its divisors is an integer number (179928).

2^1317121 is an apocalyptic number.

It is an amenable number.

1317121 is a deficient number, since it is larger than the sum of its proper divisors (122303).

1317121 is a wasteful number, since it uses less digits than its factorization.

1317121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511.

The product of its digits is 42, while the sum is 16.

The square root of 1317121 is about 1147.6589214571. The cubic root of 1317121 is about 109.6163216941.

The spelling of 1317121 in words is "one million, three hundred seventeen thousand, one hundred twenty-one".