2131717 has 8 divisors (see below), whose sum is σ = 2448576. Its totient is φ = 1817952.

The previous prime is 2131699. The next prime is 2131721. The reversal of 2131717 is 7171312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131717 is a prime.

It is a Duffinian number.

2131717 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131417) by changing a digit.

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, 978 + ... + 2284.

It is an arithmetic number, because the mean of its divisors is an integer number (306072).

2^2131717 is an apocalyptic number.

It is an amenable number.

2131717 is a deficient number, since it is larger than the sum of its proper divisors (316859).

2131717 is a wasteful number, since it uses less digits than its factorization.

2131717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547.

The product of its digits is 294, while the sum is 22.

The square root of 2131717 is about 1460.0400679433. The cubic root of 2131717 is about 128.6993982190.

The spelling of 2131717 in words is "two million, one hundred thirty-one thousand, seven hundred seventeen".