2212545 has 8 divisors (see below), whose sum is σ = 3540096. Its totient is φ = 1180016.

The previous prime is 2212537. The next prime is 2212547. The reversal of 2212545 is 5452122.

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 2212545 - 2³ = 2212537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2212547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73737 + ... + 73766.

It is an arithmetic number, because the mean of its divisors is an integer number (442512).

2^2212545 is an apocalyptic number.

It is an amenable number.

2212545 is a deficient number, since it is larger than the sum of its proper divisors (1327551).

2212545 is a wasteful number, since it uses less digits than its factorization.

2212545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147511.

The product of its digits is 800, while the sum is 21.

The square root of 2212545 is about 1487.4626045720. The cubic root of 2212545 is about 130.3058871846.

Adding to 2212545 its reverse (5452122), we get a palindrome (7664667).

The spelling of 2212545 in words is "two million, two hundred twelve thousand, five hundred forty-five".