139300917 has 16 divisors (see below), whose sum is σ = 214372992. Its totient is φ = 78811200.

The previous prime is 139300897. The next prime is 139300921. The reversal of 139300917 is 719003931.

It is not a de Polignac number, because 139300917 - 2⁶ = 139300853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139300957) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30718 + ... + 34959.

It is an arithmetic number, because the mean of its divisors is an integer number (13398312).

Almost surely, 2^139300917 is an apocalyptic number.

It is an amenable number.

139300917 is a deficient number, since it is larger than the sum of its proper divisors (75072075).

139300917 is a wasteful number, since it uses less digits than its factorization.

139300917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65788.

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 139300917 is about 11802.5809465557. The cubic root of 139300917 is about 518.3836856089.

The spelling of 139300917 in words is "one hundred thirty-nine million, three hundred thousand, nine hundred seventeen".