2137128841 has 2 divisors, whose sum is σ = 2137128842. Its totient is φ = 2137128840.

The previous prime is 2137128823. The next prime is 2137128887. The reversal of 2137128841 is 1488217312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2029052025 + 108076816 = 45045^2 + 10396^2 .

It is a cyclic number.

It is not a de Polignac number, because 2137128841 - 2¹⁷ = 2136997769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2137128841.

It is not a weakly prime, because it can be changed into another prime (2137128041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068564420 + 1068564421.

It is an arithmetic number, because the mean of its divisors is an integer number (1068564421).

Almost surely, 2^2137128841 is an apocalyptic number.

It is an amenable number.

2137128841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137128841 is an equidigital number, since it uses as much as digits as its factorization.

2137128841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 37.

The square root of 2137128841 is about 46229.0908519733. The cubic root of 2137128841 is about 1288.0821693219.

The spelling of 2137128841 in words is "two billion, one hundred thirty-seven million, one hundred twenty-eight thousand, eight hundred forty-one".