139417226 has 16 divisors (see below), whose sum is σ = 226552200. Its totient is φ = 64344384.

The previous prime is 139417219. The next prime is 139417247. The reversal of 139417226 is 622714931.

It can be written as a sum of positive squares in 4 ways, for example, as 29691601 + 109725625 = 5449^2 + 10475^2 .

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 7 ways as a sum of consecutive naturals, for example, 11471 + ... + 20258.

Almost surely, 2^139417226 is an apocalyptic number.

139417226 is a deficient number, since it is larger than the sum of its proper divisors (87134974).

139417226 is an equidigital number, since it uses as much as digits as its factorization.

139417226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31770 (or 31744 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 139417226 is about 11807.5071882256. The cubic root of 139417226 is about 518.5279199201.

The spelling of 139417226 in words is "one hundred thirty-nine million, four hundred seventeen thousand, two hundred twenty-six".