138714232247 has 2 divisors, whose sum is σ = 138714232248. Its totient is φ = 138714232246.

The previous prime is 138714232187. The next prime is 138714232301. The reversal of 138714232247 is 742232417831.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (742232417831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138714232247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138714232198 and 138714232207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138714232847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69357116123 + 69357116124.

It is an arithmetic number, because the mean of its divisors is an integer number (69357116124).

Almost surely, 2^138714232247 is an apocalyptic number.

138714232247 is a deficient number, since it is larger than the sum of its proper divisors (1).

138714232247 is an equidigital number, since it uses as much as digits as its factorization.

138714232247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 44.

The spelling of 138714232247 in words is "one hundred thirty-eight billion, seven hundred fourteen million, two hundred thirty-two thousand, two hundred forty-seven".