160787617 has 4 divisors (see below), whose sum is σ = 161243460. Its totient is φ = 160331776.

The previous prime is 160787593. The next prime is 160787639. The reversal of 160787617 is 716787061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 716787061 = 197 ⋅3638513.

It can be written as a sum of positive squares in 2 ways, for example, as 51710481 + 109077136 = 7191^2 + 10444^2 .

It is a cyclic number.

It is not a de Polignac number, because 160787617 - 2¹⁹ = 160263329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160787647) 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 3 ways as a sum of consecutive naturals, for example, 227392 + ... + 228097.

It is an arithmetic number, because the mean of its divisors is an integer number (40310865).

Almost surely, 2^160787617 is an apocalyptic number.

It is an amenable number.

160787617 is a deficient number, since it is larger than the sum of its proper divisors (455843).

160787617 is an equidigital number, since it uses as much as digits as its factorization.

160787617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455842.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 160787617 is about 12680.2057159969. The cubic root of 160787617 is about 543.7728662247.

The spelling of 160787617 in words is "one hundred sixty million, seven hundred eighty-seven thousand, six hundred seventeen".