2130215717 has 4 divisors (see below), whose sum is σ = 2434532256. Its totient is φ = 1825899180.

The previous prime is 2130215687. The next prime is 2130215729. The reversal of 2130215717 is 7175120312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2130215717 - 2¹⁶ = 2130150181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2130215717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130215767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152158259 + ... + 152158272.

It is an arithmetic number, because the mean of its divisors is an integer number (608633064).

Almost surely, 2^2130215717 is an apocalyptic number.

It is an amenable number.

2130215717 is a deficient number, since it is larger than the sum of its proper divisors (304316539).

2130215717 is an equidigital number, since it uses as much as digits as its factorization.

2130215717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304316538.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 2130215717 is about 46154.2600092343. The cubic root of 2130215717 is about 1286.6917851131.

The spelling of 2130215717 in words is "two billion, one hundred thirty million, two hundred fifteen thousand, seven hundred seventeen".