138773711 has 2 divisors, whose sum is σ = 138773712. Its totient is φ = 138773710.

The previous prime is 138773707. The next prime is 138773731. The reversal of 138773711 is 117377831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138773711 - 2² = 138773707 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138773731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69386855 + 69386856.

It is an arithmetic number, because the mean of its divisors is an integer number (69386856).

Almost surely, 2^138773711 is an apocalyptic number.

138773711 is a deficient number, since it is larger than the sum of its proper divisors (1).

138773711 is an equidigital number, since it uses as much as digits as its factorization.

138773711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 38.

The square root of 138773711 is about 11780.2254222914. The cubic root of 138773711 is about 517.7288909437.

The spelling of 138773711 in words is "one hundred thirty-eight million, seven hundred seventy-three thousand, seven hundred eleven".