162201617 has 8 divisors (see below), whose sum is σ = 166570152. Its totient is φ = 157852800.

The previous prime is 162201587. The next prime is 162201691. The reversal of 162201617 is 716102261.

It can be written as a sum of positive squares in 4 ways, for example, as 52287361 + 109914256 = 7231^2 + 10484^2 .

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 162201617 - 2¹⁰ = 162200593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162203617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12563 + ... + 21959.

It is an arithmetic number, because the mean of its divisors is an integer number (20821269).

Almost surely, 2^162201617 is an apocalyptic number.

It is an amenable number.

162201617 is a deficient number, since it is larger than the sum of its proper divisors (4368535).

162201617 is an equidigital number, since it uses as much as digits as its factorization.

162201617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9859.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 162201617 is about 12735.8398623726. The cubic root of 162201617 is about 545.3622337275.

Adding to 162201617 its reverse (716102261), we get a palindrome (878303878).

The spelling of 162201617 in words is "one hundred sixty-two million, two hundred one thousand, six hundred seventeen".