1712387161 has 3 divisors (see below), whose sum is σ = 1712428543. Its totient is φ = 1712345780.

The previous prime is 1712387137. The next prime is 1712387167. The reversal of 1712387161 is 1617832171.

The square root of 1712387161 is 41381.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 997359561 + 715027600 = 31581^2 + 26740^2 .

It is not a de Polignac number, because 1712387161 - 2⁵ = 1712387129 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 1712387161.

It is not an unprimeable number, because it can be changed into a prime (1712387167) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20691 + ... + 62071.

Almost surely, 2^1712387161 is an apocalyptic number.

1712387161 is the 41381-st square number.

1712387161 is the 20691-st centered octagonal number.

It is an amenable number.

1712387161 is a deficient number, since it is larger than the sum of its proper divisors (41382).

1712387161 is an frugal number, since it uses more digits than its factorization.

1712387161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82762 (or 41381 counting only the distinct ones).

The product of its digits is 14112, while the sum is 37.

The cubic root of 1712387161 is about 1196.3749772667.

The spelling of 1712387161 in words is "one billion, seven hundred twelve million, three hundred eighty-seven thousand, one hundred sixty-one".