138000673 has 2 divisors, whose sum is σ = 138000674. Its totient is φ = 138000672.

The previous prime is 138000661. The next prime is 138000683. The reversal of 138000673 is 376000831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126495009 + 11505664 = 11247^2 + 3392^2 .

It is an emirp because it is prime and its reverse (376000831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138000673 - 2¹⁷ = 137869601 is a prime.

It is not a weakly prime, because it can be changed into another prime (138000683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69000336 + 69000337.

It is an arithmetic number, because the mean of its divisors is an integer number (69000337).

Almost surely, 2^138000673 is an apocalyptic number.

It is an amenable number.

138000673 is a deficient number, since it is larger than the sum of its proper divisors (1).

138000673 is an equidigital number, since it uses as much as digits as its factorization.

138000673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 138000673 is about 11747.3687692181. The cubic root of 138000673 is about 516.7657652901.

The spelling of 138000673 in words is "one hundred thirty-eight million, six hundred seventy-three", and thus it is an aban number.