139626222 has 8 divisors (see below), whose sum is σ = 279252456. Its totient is φ = 46542072.

The previous prime is 139626199. The next prime is 139626239. The reversal of 139626222 is 222626931.

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

139626222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 11635513 + ... + 11635524.

It is an arithmetic number, because the mean of its divisors is an integer number (34906557).

Almost surely, 2^139626222 is an apocalyptic number.

139626222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139626222 is a wasteful number, since it uses less digits than its factorization.

139626222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23271042.

The product of its digits is 15552, while the sum is 33.

The square root of 139626222 is about 11816.3540062068. The cubic root of 139626222 is about 518.7868935487.

The spelling of 139626222 in words is "one hundred thirty-nine million, six hundred twenty-six thousand, two hundred twenty-two".