1712131189 has 4 divisors (see below), whose sum is σ = 1729782124. Its totient is φ = 1694480256.

The previous prime is 1712131171. The next prime is 1712131237. The reversal of 1712131189 is 9811312171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9811312171 = 31 ⋅316493941.

It can be written as a sum of positive squares in 2 ways, for example, as 729810225 + 982320964 = 27015^2 + 31342^2 .

It is a cyclic number.

It is not a de Polignac number, because 1712131189 - 2²¹ = 1710034037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1712131159) 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, 8825322 + ... + 8825515.

It is an arithmetic number, because the mean of its divisors is an integer number (432445531).

Almost surely, 2^1712131189 is an apocalyptic number.

It is an amenable number.

1712131189 is a deficient number, since it is larger than the sum of its proper divisors (17650935).

1712131189 is an equidigital number, since it uses as much as digits as its factorization.

1712131189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17650934.

The product of its digits is 3024, while the sum is 34.

The square root of 1712131189 is about 41377.9070157010. The cubic root of 1712131189 is about 1196.3153619019.

The spelling of 1712131189 in words is "one billion, seven hundred twelve million, one hundred thirty-one thousand, one hundred eighty-nine".