138850238 has 16 divisors (see below), whose sum is σ = 210744960. Its totient is φ = 68607000.

The previous prime is 138850211. The next prime is 138850247. The reversal of 138850238 is 832058831.

It is a Curzon number.

It is a congruent number.

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, 62633 + ... + 64811.

It is an arithmetic number, because the mean of its divisors is an integer number (13171560).

Almost surely, 2^138850238 is an apocalyptic number.

138850238 is a deficient number, since it is larger than the sum of its proper divisors (71894722).

138850238 is a wasteful number, since it uses less digits than its factorization.

138850238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 138850238 is about 11783.4730873372. The cubic root of 138850238 is about 517.8240409494.

The spelling of 138850238 in words is "one hundred thirty-eight million, eight hundred fifty thousand, two hundred thirty-eight".