138611175 has 48 divisors (see below), whose sum is σ = 242901120. Its totient is φ = 69552000.

The previous prime is 138611171. The next prime is 138611189. The reversal of 138611175 is 571116831.

It is not a de Polignac number, because 138611175 - 2² = 138611171 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138611171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 300445 + ... + 300905.

It is an arithmetic number, because the mean of its divisors is an integer number (5060440).

Almost surely, 2^138611175 is an apocalyptic number.

138611175 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138611175 is a deficient number, since it is larger than the sum of its proper divisors (104289945).

138611175 is a wasteful number, since it uses less digits than its factorization.

138611175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 699 counting only the distinct ones).

The product of its digits is 5040, while the sum is 33.

The square root of 138611175 is about 11773.3247215899. The cubic root of 138611175 is about 517.5266853611.

It can be divided in two parts, 1386 and 11175, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 138611175 in words is "one hundred thirty-eight million, six hundred eleven thousand, one hundred seventy-five".