2187982135 has 16 divisors (see below), whose sum is σ = 2664926784. Its totient is φ = 1724332032.

The previous prime is 2187982133. The next prime is 2187982163. The reversal of 2187982135 is 5312897812.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2187982135 - 2¹ = 2187982133 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 (2187982133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88389 + ... + 110401.

It is an arithmetic number, because the mean of its divisors is an integer number (166557924).

Almost surely, 2^2187982135 is an apocalyptic number.

2187982135 is a deficient number, since it is larger than the sum of its proper divisors (476944649).

2187982135 is a wasteful number, since it uses less digits than its factorization.

2187982135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22314.

The product of its digits is 241920, while the sum is 46.

The square root of 2187982135 is about 46775.8712906558. The cubic root of 2187982135 is about 1298.2188892433.

The spelling of 2187982135 in words is "two billion, one hundred eighty-seven million, nine hundred eighty-two thousand, one hundred thirty-five".