2187242517 has 16 divisors (see below), whose sum is σ = 2937738240. Its totient is φ = 1447472832.

The previous prime is 2187242509. The next prime is 2187242527. The reversal of 2187242517 is 7152427812.

It is not a de Polignac number, because 2187242517 - 2³ = 2187242509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187242527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758284 + ... + 761162.

It is an arithmetic number, because the mean of its divisors is an integer number (183608640).

Almost surely, 2^2187242517 is an apocalyptic number.

It is an amenable number.

2187242517 is a deficient number, since it is larger than the sum of its proper divisors (750495723).

2187242517 is a wasteful number, since it uses less digits than its factorization.

2187242517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652.

The product of its digits is 62720, while the sum is 39.

The square root of 2187242517 is about 46767.9646446154. The cubic root of 2187242517 is about 1298.0725909325.

The spelling of 2187242517 in words is "two billion, one hundred eighty-seven million, two hundred forty-two thousand, five hundred seventeen".