2145226 has 4 divisors (see below), whose sum is σ = 3217842. Its totient is φ = 1072612.

The previous prime is 2145197. The next prime is 2145239. The reversal of 2145226 is 6225412.

2145226 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 can be written as a sum of positive squares in only one way, i.e., 1560001 + 585225 = 1249^2 + 765^2 .

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 = 2145197 and 2145206.

It is an unprimeable number.

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, 536305 + ... + 536308.

2^2145226 is an apocalyptic number.

2145226 is a deficient number, since it is larger than the sum of its proper divisors (1072616).

2145226 is a wasteful number, since it uses less digits than its factorization.

2145226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072615.

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

The square root of 2145226 is about 1464.6590046833. The cubic root of 2145226 is about 128.9706882103.

The spelling of 2145226 in words is "two million, one hundred forty-five thousand, two hundred twenty-six".