2145622 has 4 divisors (see below), whose sum is σ = 3218436. Its totient is φ = 1072810.

The previous prime is 2145617. The next prime is 2145629. The reversal of 2145622 is 2265412.

2145622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×2145622³ = 29633359882467545544, which contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2145593 and 2145602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536404 + ... + 536407.

It is an arithmetic number, because the mean of its divisors is an integer number (804609).

2^2145622 is an apocalyptic number.

2145622 is a deficient number, since it is larger than the sum of its proper divisors (1072814).

2145622 is a wasteful number, since it uses less digits than its factorization.

2145622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072813.

The product of its digits is 960, while the sum is 22.

The square root of 2145622 is about 1464.7941834947. The cubic root of 2145622 is about 128.9786235436.

The spelling of 2145622 in words is "two million, one hundred forty-five thousand, six hundred twenty-two".