139222 has 8 divisors (see below), whose sum is σ = 210672. Its totient is φ = 69000.

The previous prime is 139201. The next prime is 139241. The reversal of 139222 is 222931.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 139222.

It is a congruent number.

It is an unprimeable number.

139222 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 72 + ... + 532.

It is an arithmetic number, because the mean of its divisors is an integer number (26334).

2¹³⁹²²² is an apocalyptic number.

139222 is a deficient number, since it is larger than the sum of its proper divisors (71450).

139222 is a wasteful number, since it uses less digits than its factorization.

139222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its digits is 216, while the sum is 19.

The square root of 139222 is about 373.1246440534. The cubic root of 139222 is about 51.8285775239.

It can be divided in two parts, 13922 and 2, that added together give a square (13924 = 118²).

The spelling of 139222 in words is "one hundred thirty-nine thousand, two hundred twenty-two".