160139605 has 4 divisors (see below), whose sum is σ = 192167532. Its totient is φ = 128111680.

The previous prime is 160139549. The next prime is 160139621. The reversal of 160139605 is 506931061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97950609 + 62188996 = 9897^2 + 7886^2 .

It is not a de Polignac number, because 160139605 - 2¹⁹ = 159615317 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 16013956 + ... + 16013965.

It is an arithmetic number, because the mean of its divisors is an integer number (48041883).

Almost surely, 2^160139605 is an apocalyptic number.

It is an amenable number.

160139605 is a deficient number, since it is larger than the sum of its proper divisors (32027927).

160139605 is an equidigital number, since it uses as much as digits as its factorization.

160139605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32027926.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 160139605 is about 12654.6278096197. The cubic root of 160139605 is about 543.0413716984.

The spelling of 160139605 in words is "one hundred sixty million, one hundred thirty-nine thousand, six hundred five".