2129882141 has 2 divisors, whose sum is σ = 2129882142. Its totient is φ = 2129882140.

The previous prime is 2129882099. The next prime is 2129882191. The reversal of 2129882141 is 1412889212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1938640900 + 191241241 = 44030^2 + 13829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2129882141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2129882095 and 2129882104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2129882191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064941070 + 1064941071.

It is an arithmetic number, because the mean of its divisors is an integer number (1064941071).

Almost surely, 2^2129882141 is an apocalyptic number.

It is an amenable number.

2129882141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129882141 is an equidigital number, since it uses as much as digits as its factorization.

2129882141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 38.

The square root of 2129882141 is about 46150.6461601568. The cubic root of 2129882141 is about 1286.6246194733.

The spelling of 2129882141 in words is "two billion, one hundred twenty-nine million, eight hundred eighty-two thousand, one hundred forty-one".