2622161 has 8 divisors (see below), whose sum is σ = 2756160. Its totient is φ = 2489872.

The previous prime is 2622157. The next prime is 2622167. The reversal of 2622161 is 1612262.

It is a happy number.

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 2622161 - 2² = 2622157 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2622167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3650 + ... + 4308.

It is an arithmetic number, because the mean of its divisors is an integer number (344520).

2^2622161 is an apocalyptic number.

It is an amenable number.

2622161 is a deficient number, since it is larger than the sum of its proper divisors (133999).

2622161 is a wasteful number, since it uses less digits than its factorization.

2622161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its digits is 288, while the sum is 20.

The square root of 2622161 is about 1619.3088031626. The cubic root of 2622161 is about 137.8964601769.

The spelling of 2622161 in words is "two million, six hundred twenty-two thousand, one hundred sixty-one".