138000236 has 24 divisors (see below), whose sum is σ = 263940096. Its totient is φ = 62611920.

The previous prime is 138000227. The next prime is 138000293. The reversal of 138000236 is 632000831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24125 + ... + 29291.

It is an arithmetic number, because the mean of its divisors is an integer number (10997504).

Almost surely, 2^138000236 is an apocalyptic number.

It is an amenable number.

138000236 is a deficient number, since it is larger than the sum of its proper divisors (125939860).

138000236 is a wasteful number, since it uses less digits than its factorization.

138000236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789 (or 5787 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 138000236 is about 11747.3501692935. The cubic root of 138000236 is about 516.7652198172.

The spelling of 138000236 in words is "one hundred thirty-eight million, two hundred thirty-six", and thus it is an aban number.