1622162 has 4 divisors (see below), whose sum is σ = 2433246. Its totient is φ = 811080.

The previous prime is 1622149. The next prime is 1622189. The reversal of 1622162 is 2612261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2612261 = 809 ⋅3229.

It can be written as a sum of positive squares in only one way, i.e., 1590121 + 32041 = 1261^2 + 179^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 405539 + ... + 405542.

2^1622162 is an apocalyptic number.

1622162 is a deficient number, since it is larger than the sum of its proper divisors (811084).

1622162 is an equidigital number, since it uses as much as digits as its factorization.

1622162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811083.

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

The square root of 1622162 is about 1273.6412367696. The cubic root of 1622162 is about 117.4982525770.

Subtracting 1622162 from its reverse (2612261), we obtain a palindrome (990099).

The spelling of 1622162 in words is "one million, six hundred twenty-two thousand, one hundred sixty-two".