138547246573 has 2 divisors, whose sum is σ = 138547246574. Its totient is φ = 138547246572.

The previous prime is 138547246547. The next prime is 138547246601. The reversal of 138547246573 is 375642745831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123624669609 + 14922576964 = 351603^2 + 122158^2 .

It is a cyclic number.

It is not a de Polignac number, because 138547246573 - 2¹⁷ = 138547115501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138547246373) 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, 69273623286 + 69273623287.

It is an arithmetic number, because the mean of its divisors is an integer number (69273623287).

Almost surely, 2^138547246573 is an apocalyptic number.

It is an amenable number.

138547246573 is a deficient number, since it is larger than the sum of its proper divisors (1).

138547246573 is an equidigital number, since it uses as much as digits as its factorization.

138547246573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16934400, while the sum is 55.

The spelling of 138547246573 in words is "one hundred thirty-eight billion, five hundred forty-seven million, two hundred forty-six thousand, five hundred seventy-three".