138576711 has 16 divisors (see below), whose sum is σ = 227408384. Its totient is φ = 73095264.

The previous prime is 138576661. The next prime is 138576721. The reversal of 138576711 is 117675831.

It is not a de Polignac number, because 138576711 - 2⁷ = 138576583 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 138576711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138576721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253531 + ... + 254076.

It is an arithmetic number, because the mean of its divisors is an integer number (14213024).

Almost surely, 2^138576711 is an apocalyptic number.

138576711 is a deficient number, since it is larger than the sum of its proper divisors (88831673).

138576711 is a wasteful number, since it uses less digits than its factorization.

138576711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507630.

The product of its digits is 35280, while the sum is 39.

The square root of 138576711 is about 11771.8609828693. The cubic root of 138576711 is about 517.4837895457.

The spelling of 138576711 in words is "one hundred thirty-eight million, five hundred seventy-six thousand, seven hundred eleven".