138038002 has 8 divisors (see below), whose sum is σ = 217954800. Its totient is φ = 65386404.

The previous prime is 138037997. The next prime is 138038003. The reversal of 138038002 is 200830831.

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

It is not an unprimeable number, because it can be changed into a prime (138038003) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1816252 + ... + 1816327.

It is an arithmetic number, because the mean of its divisors is an integer number (27244350).

Almost surely, 2^138038002 is an apocalyptic number.

138038002 is a deficient number, since it is larger than the sum of its proper divisors (79916798).

138038002 is a wasteful number, since it uses less digits than its factorization.

138038002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632600.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 138038002 is about 11748.9574856665. The cubic root of 138038002 is about 516.8123559087.

Adding to 138038002 its reverse (200830831), we get a palindrome (338868833).

The spelling of 138038002 in words is "one hundred thirty-eight million, thirty-eight thousand, two".