138160178 has 16 divisors (see below), whose sum is σ = 226328256. Its totient is φ = 62867280.

The previous prime is 138160171. The next prime is 138160261. The reversal of 138160178 is 871061831.

It is not an unprimeable number, because it can be changed into a prime (138160171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35576 + ... + 39267.

It is an arithmetic number, because the mean of its divisors is an integer number (14145516).

Almost surely, 2^138160178 is an apocalyptic number.

138160178 is a deficient number, since it is larger than the sum of its proper divisors (88168078).

138160178 is a wasteful number, since it uses less digits than its factorization.

138160178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74929.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 138160178 is about 11754.1557757246. The cubic root of 138160178 is about 516.9647860266.

The spelling of 138160178 in words is "one hundred thirty-eight million, one hundred sixty thousand, one hundred seventy-eight".