139226 has 8 divisors (see below), whose sum is σ = 212160. Its totient is φ = 68508.

The previous prime is 139201. The next prime is 139241. The reversal of 139226 is 622931.

139226 = T₂₈ + T₂₉ + ... + T₉₄.

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

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (26520).

2¹³⁹²²⁶ is an apocalyptic number.

139226 is a deficient number, since it is larger than the sum of its proper divisors (72934).

139226 is a wasteful number, since it uses less digits than its factorization.

139226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108.

The product of its digits is 648, while the sum is 23.

The square root of 139226 is about 373.1300041540. The cubic root of 139226 is about 51.8290738830.

The spelling of 139226 in words is "one hundred thirty-nine thousand, two hundred twenty-six".