2175138503 has 2 divisors, whose sum is σ = 2175138504. Its totient is φ = 2175138502.

The previous prime is 2175138439. The next prime is 2175138509. The reversal of 2175138503 is 3058315712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2175138503 - 2⁶ = 2175138439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2175138509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087569251 + 1087569252.

It is an arithmetic number, because the mean of its divisors is an integer number (1087569252).

Almost surely, 2^2175138503 is an apocalyptic number.

2175138503 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175138503 is an equidigital number, since it uses as much as digits as its factorization.

2175138503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 2175138503 is about 46638.3801498294. The cubic root of 2175138503 is about 1295.6736859372.

The spelling of 2175138503 in words is "two billion, one hundred seventy-five million, one hundred thirty-eight thousand, five hundred three".