138862286 has 8 divisors (see below), whose sum is σ = 208362000. Its totient is φ = 69408288.

The previous prime is 138862271. The next prime is 138862289. The reversal of 138862286 is 682268831.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138862289) 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, 2411 + ... + 16838.

It is an arithmetic number, because the mean of its divisors is an integer number (26045250).

Almost surely, 2^138862286 is an apocalyptic number.

138862286 is a deficient number, since it is larger than the sum of its proper divisors (69499714).

138862286 is a wasteful number, since it uses less digits than its factorization.

138862286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22858.

The product of its digits is 221184, while the sum is 44.

The square root of 138862286 is about 11783.9843007363. The cubic root of 138862286 is about 517.8390176699.

The spelling of 138862286 in words is "one hundred thirty-eight million, eight hundred sixty-two thousand, two hundred eighty-six".