139628219 has 2 divisors, whose sum is σ = 139628220. Its totient is φ = 139628218.

The previous prime is 139628213. The next prime is 139628227. The reversal of 139628219 is 912826931.

139628219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139628219 - 2²⁰ = 138579643 is a prime.

It is a super-2 number, since 2×139628219² = 38992079082223922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (139628213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69814109 + 69814110.

It is an arithmetic number, because the mean of its divisors is an integer number (69814110).

Almost surely, 2^139628219 is an apocalyptic number.

139628219 is a deficient number, since it is larger than the sum of its proper divisors (1).

139628219 is an equidigital number, since it uses as much as digits as its factorization.

139628219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 41.

The square root of 139628219 is about 11816.4385074353. The cubic root of 139628219 is about 518.7893668484.

The spelling of 139628219 in words is "one hundred thirty-nine million, six hundred twenty-eight thousand, two hundred nineteen".