162344561 has 4 divisors (see below), whose sum is σ = 162898932. Its totient is φ = 161790192.

The previous prime is 162344519. The next prime is 162344563. The reversal of 162344561 is 165443261.

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 81793936 + 80550625 = 9044^2 + 8975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162344561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162344563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276746 + ... + 277331.

It is an arithmetic number, because the mean of its divisors is an integer number (40724733).

Almost surely, 2^162344561 is an apocalyptic number.

It is an amenable number.

162344561 is a deficient number, since it is larger than the sum of its proper divisors (554371).

162344561 is an equidigital number, since it uses as much as digits as its factorization.

162344561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554370.

The product of its digits is 17280, while the sum is 32.

The square root of 162344561 is about 12741.4505061237. The cubic root of 162344561 is about 545.5223911323.

The spelling of 162344561 in words is "one hundred sixty-two million, three hundred forty-four thousand, five hundred sixty-one".