138848713 has 4 divisors (see below), whose sum is σ = 146156560. Its totient is φ = 131540868.

The previous prime is 138848693. The next prime is 138848729. The reversal of 138848713 is 317848831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138848713 - 2¹⁷ = 138717641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138848713.

It is not an unprimeable number, because it can be changed into a prime (138848813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3653895 + ... + 3653932.

It is an arithmetic number, because the mean of its divisors is an integer number (36539140).

Almost surely, 2^138848713 is an apocalyptic number.

It is an amenable number.

138848713 is a deficient number, since it is larger than the sum of its proper divisors (7307847).

138848713 is an equidigital number, since it uses as much as digits as its factorization.

138848713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7307846.

The product of its digits is 129024, while the sum is 43.

The square root of 138848713 is about 11783.4083778846. The cubic root of 138848713 is about 517.8221451789.

The spelling of 138848713 in words is "one hundred thirty-eight million, eight hundred forty-eight thousand, seven hundred thirteen".