138536038 has 8 divisors (see below), whose sum is σ = 216839088. Its totient is φ = 66256344.

The previous prime is 138536033. The next prime is 138536051. The reversal of 138536038 is 830635831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 138535988 and 138536006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138536033) 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, 1505781 + ... + 1505872.

It is an arithmetic number, because the mean of its divisors is an integer number (27104886).

Almost surely, 2^138536038 is an apocalyptic number.

138536038 is a deficient number, since it is larger than the sum of its proper divisors (78303050).

138536038 is a wasteful number, since it uses less digits than its factorization.

138536038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011678.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 138536038 is about 11770.1333042579. The cubic root of 138536038 is about 517.4331565123.

It can be divided in two parts, 13853 and 6038, that added together give a palindrome (19891).

The spelling of 138536038 in words is "one hundred thirty-eight million, five hundred thirty-six thousand, thirty-eight".