2138127097 has 2 divisors, whose sum is σ = 2138127098. Its totient is φ = 2138127096.

The previous prime is 2138127083. The next prime is 2138127119. The reversal of 2138127097 is 7907218312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1959744361 + 178382736 = 44269^2 + 13356^2 .

It is a cyclic number.

It is not a de Polignac number, because 2138127097 - 2²³ = 2129738489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2138127037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069063548 + 1069063549.

It is an arithmetic number, because the mean of its divisors is an integer number (1069063549).

Almost surely, 2^2138127097 is an apocalyptic number.

It is an amenable number.

2138127097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138127097 is an equidigital number, since it uses as much as digits as its factorization.

2138127097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 2138127097 is about 46239.8864293588. The cubic root of 2138127097 is about 1288.2826931237.

The spelling of 2138127097 in words is "two billion, one hundred thirty-eight million, one hundred twenty-seven thousand, ninety-seven".