4212545 has 8 divisors (see below), whose sum is σ = 5178600. Its totient is φ = 3287680.

The previous prime is 4212529. The next prime is 4212557. The reversal of 4212545 is 5452124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 529984 + 3682561 = 728^2 + 1919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4212545 - 2⁴ = 4212529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4212545.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 10070 + ... + 10479.

It is an arithmetic number, because the mean of its divisors is an integer number (647325).

Almost surely, 2^4212545 is an apocalyptic number.

It is an amenable number.

4212545 is a deficient number, since it is larger than the sum of its proper divisors (966055).

4212545 is a wasteful number, since it uses less digits than its factorization.

4212545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20595.

The product of its digits is 1600, while the sum is 23.

The square root of 4212545 is about 2052.4485377227. The cubic root of 4212545 is about 161.5033435201.

Adding to 4212545 its reverse (5452124), we get a palindrome (9664669).

The spelling of 4212545 in words is "four million, two hundred twelve thousand, five hundred forty-five".