138601712 has 20 divisors (see below), whose sum is σ = 269547480. Its totient is φ = 69041088.

The previous prime is 138601649. The next prime is 138601717. The reversal of 138601712 is 217106831.

It is a hoax number, since the sum of its digits (29) 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 (138601717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11798 + ... + 20405.

It is an arithmetic number, because the mean of its divisors is an integer number (13477374).

Almost surely, 2^138601712 is an apocalyptic number.

It is an amenable number.

138601712 is a deficient number, since it is larger than the sum of its proper divisors (130945768).

138601712 is a wasteful number, since it uses less digits than its factorization.

138601712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32480 (or 32474 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 138601712 is about 11772.9228316506. The cubic root of 138601712 is about 517.5149078920.

The spelling of 138601712 in words is "one hundred thirty-eight million, six hundred one thousand, seven hundred twelve".