2138915411 has 2 divisors, whose sum is σ = 2138915412. Its totient is φ = 2138915410.

The previous prime is 2138915353. The next prime is 2138915419. The reversal of 2138915411 is 1145198312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2138915411 - 2²² = 2134721107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2138915419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069457705 + 1069457706.

It is an arithmetic number, because the mean of its divisors is an integer number (1069457706).

Almost surely, 2^2138915411 is an apocalyptic number.

2138915411 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138915411 is an equidigital number, since it uses as much as digits as its factorization.

2138915411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 35.

The square root of 2138915411 is about 46248.4098213117. The cubic root of 2138915411 is about 1288.4410009091.

The spelling of 2138915411 in words is "two billion, one hundred thirty-eight million, nine hundred fifteen thousand, four hundred eleven".