139622305 has 16 divisors (see below), whose sum is σ = 177450624. Its totient is φ = 105240960.

The previous prime is 139622293. The next prime is 139622321. The reversal of 139622305 is 503226931.

It is not a de Polignac number, because 139622305 - 2⁷ = 139622177 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 1356 + ... + 16765.

It is an arithmetic number, because the mean of its divisors is an integer number (11090664).

Almost surely, 2^139622305 is an apocalyptic number.

It is an amenable number.

139622305 is a deficient number, since it is larger than the sum of its proper divisors (37828319).

139622305 is a wasteful number, since it uses less digits than its factorization.

139622305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18216.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 139622305 is about 11816.1882601793. The cubic root of 139622305 is about 518.7820422459.

The spelling of 139622305 in words is "one hundred thirty-nine million, six hundred twenty-two thousand, three hundred five".