139595197 has 8 divisors (see below), whose sum is σ = 159715136. Its totient is φ = 119519712.

The previous prime is 139595171. The next prime is 139595207. The reversal of 139595197 is 791595931.

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

It is a cyclic number.

It is not a de Polignac number, because 139595197 - 2⁷ = 139595069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139595197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139595107) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4083 + ... + 17200.

It is an arithmetic number, because the mean of its divisors is an integer number (19964392).

Almost surely, 2^139595197 is an apocalyptic number.

It is an amenable number.

139595197 is a deficient number, since it is larger than the sum of its proper divisors (20119939).

139595197 is an equidigital number, since it uses as much as digits as its factorization.

139595197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22227.

The product of its digits is 382725, while the sum is 49.

The square root of 139595197 is about 11815.0411340799. The cubic root of 139595197 is about 518.7484658202.

The spelling of 139595197 in words is "one hundred thirty-nine million, five hundred ninety-five thousand, one hundred ninety-seven".