138071196 has 24 divisors (see below), whose sum is σ = 357962640. Its totient is φ = 46023696.

The previous prime is 138071189. The next prime is 138071239. The reversal of 138071196 is 691170831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 138071196.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639111 + ... + 639326.

It is an arithmetic number, because the mean of its divisors is an integer number (14915110).

Almost surely, 2^138071196 is an apocalyptic number.

It is an amenable number.

138071196 is an abundant number, since it is smaller than the sum of its proper divisors (219891444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138071196 is a wasteful number, since it uses less digits than its factorization.

138071196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278450 (or 1278442 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 138071196 is about 11750.3700367265. The cubic root of 138071196 is about 516.8537785464.

The spelling of 138071196 in words is "one hundred thirty-eight million, seventy-one thousand, one hundred ninety-six".