138602204 has 12 divisors (see below), whose sum is σ = 261211944. Its totient is φ = 63970224.

The previous prime is 138602203. The next prime is 138602221. The reversal of 138602204 is 402206831.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138602203) 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, 1332662 + ... + 1332765.

It is an arithmetic number, because the mean of its divisors is an integer number (21767662).

Almost surely, 2^138602204 is an apocalyptic number.

It is an amenable number.

138602204 is a deficient number, since it is larger than the sum of its proper divisors (122609740).

138602204 is a wasteful number, since it uses less digits than its factorization.

138602204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665444 (or 2665442 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 138602204 is about 11772.9437270379. The cubic root of 138602204 is about 517.5155202390.

The spelling of 138602204 in words is "one hundred thirty-eight million, six hundred two thousand, two hundred four".