139705165 has 8 divisors (see below), whose sum is σ = 168030720. Its totient is φ = 111507792.

The previous prime is 139705121. The next prime is 139705187. The reversal of 139705165 is 561507931.

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 139705165 - 2¹¹ = 139703117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29629 + ... + 34018.

It is an arithmetic number, because the mean of its divisors is an integer number (21003840).

Almost surely, 2^139705165 is an apocalyptic number.

It is an amenable number.

139705165 is a deficient number, since it is larger than the sum of its proper divisors (28325555).

139705165 is an equidigital number, since it uses as much as digits as its factorization.

139705165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64091.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 139705165 is about 11819.6939469683. The cubic root of 139705165 is about 518.8846471014.

The spelling of 139705165 in words is "one hundred thirty-nine million, seven hundred five thousand, one hundred sixty-five".