2133245 has 8 divisors (see below), whose sum is σ = 2710584. Its totient is φ = 1606144.

The previous prime is 2133217. The next prime is 2133251. The reversal of 2133245 is 5423312.

It is a happy number.

2133245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 267289 + 1865956 = 517^2 + 1366^2 .

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 2133245 - 2⁸ = 2132989 is a prime.

It is a Duffinian number.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 12464 + ... + 12633.

It is an arithmetic number, because the mean of its divisors is an integer number (338823).

2^2133245 is an apocalyptic number.

It is an amenable number.

2133245 is a deficient number, since it is larger than the sum of its proper divisors (577339).

2133245 is a wasteful number, since it uses less digits than its factorization.

2133245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25119.

The product of its digits is 720, while the sum is 20.

The square root of 2133245 is about 1460.5632475179. The cubic root of 2133245 is about 128.7301411542.

Adding to 2133245 its reverse (5423312), we get a palindrome (7556557).

The spelling of 2133245 in words is "two million, one hundred thirty-three thousand, two hundred forty-five".