2131718575 has 12 divisors (see below), whose sum is σ = 3020950000. Its totient is φ = 1461749760.

The previous prime is 2131718569. The next prime is 2131718597. The reversal of 2131718575 is 5758171312.

It is not a de Polignac number, because 2131718575 - 2⁵ = 2131718543 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6090450 + ... + 6090799.

Almost surely, 2^2131718575 is an apocalyptic number.

2131718575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2131718575 is a deficient number, since it is larger than the sum of its proper divisors (889231425).

2131718575 is a wasteful number, since it uses less digits than its factorization.

2131718575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12181266 (or 12181261 counting only the distinct ones).

The product of its digits is 58800, while the sum is 40.

The square root of 2131718575 is about 46170.5379544142. The cubic root of 2131718575 is about 1286.9942991516.

Adding to 2131718575 its reverse (5758171312), we get a palindrome (7889889887).

The spelling of 2131718575 in words is "two billion, one hundred thirty-one million, seven hundred eighteen thousand, five hundred seventy-five".