138555602 has 16 divisors (see below), whose sum is σ = 214589952. Its totient is φ = 67045680.

The previous prime is 138555553. The next prime is 138555629. The reversal of 138555602 is 206555831.

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, 9233 + ... + 19035.

It is an arithmetic number, because the mean of its divisors is an integer number (13411872).

Almost surely, 2^138555602 is an apocalyptic number.

138555602 is a deficient number, since it is larger than the sum of its proper divisors (76034350).

138555602 is a wasteful number, since it uses less digits than its factorization.

138555602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10033.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 138555602 is about 11770.9643615126. The cubic root of 138555602 is about 517.4575125954.

The spelling of 138555602 in words is "one hundred thirty-eight million, five hundred fifty-five thousand, six hundred two".