2187713529 has 15 divisors (see below), whose sum is σ = 3268694847. Its totient is φ = 1458195048.

The previous prime is 2187713497. The next prime is 2187713531. The reversal of 2187713529 is 9253177812.

The square root of 2187713529 is 46773.

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

It can be written as a sum of positive squares in only one way, i.e., 1000773225 + 1186940304 = 31635^2 + 34452^2 .

It is not a de Polignac number, because 2187713529 - 2⁵ = 2187713497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2187713579) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 418359 + ... + 423555.

Almost surely, 2^2187713529 is an apocalyptic number.

2187713529 is the 46773-rd square number.

2187713529 is the 23387-th centered octagonal number.

It is an amenable number.

2187713529 is a deficient number, since it is larger than the sum of its proper divisors (1080981318).

2187713529 is an frugal number, since it uses more digits than its factorization.

2187713529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406 (or 5200 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The cubic root of 2187713529 is about 1298.1657621104.

It can be divided in two parts, 2187 and 713529, that added together give a square (715716 = 846²).

The spelling of 2187713529 in words is "two billion, one hundred eighty-seven million, seven hundred thirteen thousand, five hundred twenty-nine".