138164177 has 4 divisors (see below), whose sum is σ = 138865716. Its totient is φ = 137462640.

The previous prime is 138164119. The next prime is 138164183. The reversal of 138164177 is 771461831.

It is a happy number.

138164177 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69622336 + 68541841 = 8344^2 + 8279^2 .

It is a cyclic number.

It is not a de Polignac number, because 138164177 - 2⁶ = 138164113 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 138164177.

It is not an unprimeable number, because it can be changed into a prime (138164077) 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, 350474 + ... + 350867.

It is an arithmetic number, because the mean of its divisors is an integer number (34716429).

Almost surely, 2^138164177 is an apocalyptic number.

It is an amenable number.

138164177 is a deficient number, since it is larger than the sum of its proper divisors (701539).

138164177 is an equidigital number, since it uses as much as digits as its factorization.

138164177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701538.

The product of its digits is 28224, while the sum is 38.

The square root of 138164177 is about 11754.3258845414. The cubic root of 138164177 is about 516.9697737692.

The spelling of 138164177 in words is "one hundred thirty-eight million, one hundred sixty-four thousand, one hundred seventy-seven".