2129980187 has 2 divisors, whose sum is σ = 2129980188. Its totient is φ = 2129980186.

The previous prime is 2129980141. The next prime is 2129980211. The reversal of 2129980187 is 7810899212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2129980187 - 2²⁸ = 1861544731 is a prime.

It is not a weakly prime, because it can be changed into another prime (2129880187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064990093 + 1064990094.

It is an arithmetic number, because the mean of its divisors is an integer number (1064990094).

Almost surely, 2^2129980187 is an apocalyptic number.

2129980187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129980187 is an equidigital number, since it uses as much as digits as its factorization.

2129980187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 2129980187 is about 46151.7083865809. The cubic root of 2129980187 is about 1286.6443617961.

The spelling of 2129980187 in words is "two billion, one hundred twenty-nine million, nine hundred eighty thousand, one hundred eighty-seven".