138716186 has 8 divisors (see below), whose sum is σ = 237799200. Its totient is φ = 59449788.

The previous prime is 138716183. The next prime is 138716203. The reversal of 138716186 is 681617831.

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 (138716183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4954136 + ... + 4954163.

It is an arithmetic number, because the mean of its divisors is an integer number (29724900).

Almost surely, 2^138716186 is an apocalyptic number.

138716186 is a deficient number, since it is larger than the sum of its proper divisors (99083014).

138716186 is an equidigital number, since it uses as much as digits as its factorization.

138716186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9908308.

The product of its digits is 48384, while the sum is 41.

The square root of 138716186 is about 11777.7835775667. The cubic root of 138716186 is about 517.6573440819.

The spelling of 138716186 in words is "one hundred thirty-eight million, seven hundred sixteen thousand, one hundred eighty-six".