2170138699 has 2 divisors, whose sum is σ = 2170138700. Its totient is φ = 2170138698.

The previous prime is 2170138669. The next prime is 2170138717. The reversal of 2170138699 is 9968310712.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2170138699 - 2¹¹ = 2170136651 is a prime.

It is not a weakly prime, because it can be changed into another prime (2170138609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085069349 + 1085069350.

It is an arithmetic number, because the mean of its divisors is an integer number (1085069350).

Almost surely, 2^2170138699 is an apocalyptic number.

2170138699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170138699 is an equidigital number, since it uses as much as digits as its factorization.

2170138699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 2170138699 is about 46584.7474931441. The cubic root of 2170138699 is about 1294.6801730523.

The spelling of 2170138699 in words is "two billion, one hundred seventy million, one hundred thirty-eight thousand, six hundred ninety-nine".