2117503139 has 2 divisors, whose sum is σ = 2117503140. Its totient is φ = 2117503138.

The previous prime is 2117503133. The next prime is 2117503169. The reversal of 2117503139 is 9313057112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2117503139 - 2⁸ = 2117502883 is a prime.

It is not a weakly prime, because it can be changed into another prime (2117503133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058751569 + 1058751570.

It is an arithmetic number, because the mean of its divisors is an integer number (1058751570).

Almost surely, 2^2117503139 is an apocalyptic number.

2117503139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117503139 is an equidigital number, since it uses as much as digits as its factorization.

2117503139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 2117503139 is about 46016.3355668397. The cubic root of 2117503139 is about 1284.1271283485.

The spelling of 2117503139 in words is "two billion, one hundred seventeen million, five hundred three thousand, one hundred thirty-nine".