1338140173 has 2 divisors, whose sum is σ = 1338140174. Its totient is φ = 1338140172.

The previous prime is 1338140171. The next prime is 1338140179. The reversal of 1338140173 is 3710418331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1313120169 + 25020004 = 36237^2 + 5002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338140173 - 2¹ = 1338140171 is a prime.

Together with 1338140171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338140171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669070086 + 669070087.

It is an arithmetic number, because the mean of its divisors is an integer number (669070087).

Almost surely, 2^1338140173 is an apocalyptic number.

It is an amenable number.

1338140173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338140173 is an equidigital number, since it uses as much as digits as its factorization.

1338140173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1338140173 is about 36580.5983138603. The cubic root of 1338140173 is about 1101.9634829353.

The spelling of 1338140173 in words is "one billion, three hundred thirty-eight million, one hundred forty thousand, one hundred seventy-three".