2022161509 has 4 divisors (see below), whose sum is σ = 2141112204. Its totient is φ = 1903210816.

The previous prime is 2022161489. The next prime is 2022161513. The reversal of 2022161509 is 9051612202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9051612202 = 2 ⋅4525806101.

It can be written as a sum of positive squares in 2 ways, for example, as 1853733025 + 168428484 = 43055^2 + 12978^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022161509 - 2⁹ = 2022160997 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 (2022161599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59475322 + ... + 59475355.

It is an arithmetic number, because the mean of its divisors is an integer number (535278051).

Almost surely, 2^2022161509 is an apocalyptic number.

It is an amenable number.

2022161509 is a deficient number, since it is larger than the sum of its proper divisors (118950695).

2022161509 is a wasteful number, since it uses less digits than its factorization.

2022161509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118950694.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2022161509 is about 44968.4501511893. The cubic root of 2022161509 is about 1264.5575916532.

The spelling of 2022161509 in words is "two billion, twenty-two million, one hundred sixty-one thousand, five hundred nine".