162022621 has 4 divisors (see below), whose sum is σ = 162457372. Its totient is φ = 161587872.

The previous prime is 162022607. The next prime is 162022661. The reversal of 162022621 is 126220261.

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 60295225 + 101727396 = 7765^2 + 10086^2 .

It is a cyclic number.

It is not a de Polignac number, because 162022621 - 2⁷ = 162022493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162022592 and 162022601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162022661) 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, 216816 + ... + 217561.

It is an arithmetic number, because the mean of its divisors is an integer number (40614343).

Almost surely, 2^162022621 is an apocalyptic number.

It is an amenable number.

162022621 is a deficient number, since it is larger than the sum of its proper divisors (434751).

162022621 is an equidigital number, since it uses as much as digits as its factorization.

162022621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434750.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 162022621 is about 12728.8106671440. The cubic root of 162022621 is about 545.1615501779.

Adding to 162022621 its reverse (126220261), we get a palindrome (288242882).

The spelling of 162022621 in words is "one hundred sixty-two million, twenty-two thousand, six hundred twenty-one".