139275565 has 32 divisors (see below), whose sum is σ = 201180672. Its totient is φ = 91200000.

The previous prime is 139275559. The next prime is 139275569. The reversal of 139275565 is 565572931.

It is not a de Polignac number, because 139275565 - 2¹⁷ = 139144493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139275569) 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 31 ways as a sum of consecutive naturals, for example, 26940 + ... + 31690.

It is an arithmetic number, because the mean of its divisors is an integer number (6286896).

Almost surely, 2^139275565 is an apocalyptic number.

It is an amenable number.

139275565 is a deficient number, since it is larger than the sum of its proper divisors (61905107).

139275565 is a wasteful number, since it uses less digits than its factorization.

139275565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821.

The product of its digits is 283500, while the sum is 43.

The square root of 139275565 is about 11801.5068953079. The cubic root of 139275565 is about 518.3522360420.

The spelling of 139275565 in words is "one hundred thirty-nine million, two hundred seventy-five thousand, five hundred sixty-five".