138547246547 has 2 divisors, whose sum is σ = 138547246548. Its totient is φ = 138547246546.

The previous prime is 138547246501. The next prime is 138547246573. The reversal of 138547246547 is 745642745831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138547246547 - 2⁶ = 138547246483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138547246492 and 138547246501.

It is not a weakly prime, because it can be changed into another prime (138547246247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69273623273 + 69273623274.

It is an arithmetic number, because the mean of its divisors is an integer number (69273623274).

Almost surely, 2^138547246547 is an apocalyptic number.

138547246547 is a deficient number, since it is larger than the sum of its proper divisors (1).

138547246547 is an equidigital number, since it uses as much as digits as its factorization.

138547246547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22579200, while the sum is 56.

The spelling of 138547246547 in words is "one hundred thirty-eight billion, five hundred forty-seven million, two hundred forty-six thousand, five hundred forty-seven".