162604861 has 4 divisors (see below), whose sum is σ = 163065852. Its totient is φ = 162143872.

The previous prime is 162604823. The next prime is 162604873. The reversal of 162604861 is 168406261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 168406261 = 997 ⋅168913.

It can be written as a sum of positive squares in 2 ways, for example, as 100100025 + 62504836 = 10005^2 + 7906^2 .

It is a cyclic number.

It is not a de Polignac number, because 162604861 - 2²¹ = 160507709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162604891) 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, 229966 + ... + 230671.

It is an arithmetic number, because the mean of its divisors is an integer number (40766463).

Almost surely, 2^162604861 is an apocalyptic number.

It is an amenable number.

162604861 is a deficient number, since it is larger than the sum of its proper divisors (460991).

162604861 is an equidigital number, since it uses as much as digits as its factorization.

162604861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460990.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 162604861 is about 12751.6611074793. The cubic root of 162604861 is about 545.8137953162.

The spelling of 162604861 in words is "one hundred sixty-two million, six hundred four thousand, eight hundred sixty-one".