138615202 has 16 divisors (see below), whose sum is σ = 227696832. Its totient is φ = 62764720.

The previous prime is 138615163. The next prime is 138615251. The reversal of 138615202 is 202516831.

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, 6193 + ... + 17764.

It is an arithmetic number, because the mean of its divisors is an integer number (14231052).

Almost surely, 2^138615202 is an apocalyptic number.

138615202 is a deficient number, since it is larger than the sum of its proper divisors (89081630).

138615202 is a wasteful number, since it uses less digits than its factorization.

138615202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24233.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 138615202 is about 11773.4957425567. The cubic root of 138615202 is about 517.5316971258.

The spelling of 138615202 in words is "one hundred thirty-eight million, six hundred fifteen thousand, two hundred two".