4213545 has 16 divisors (see below), whose sum is σ = 7704960. Its totient is φ = 1926144.

The previous prime is 4213543. The next prime is 4213567. The reversal of 4213545 is 5453124.

It is not a de Polignac number, because 4213545 - 2¹ = 4213543 is a prime.

It is a super-2 number, since 2×4213545² = 35507922934050, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4213543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19960 + ... + 20169.

It is an arithmetic number, because the mean of its divisors is an integer number (481560).

Almost surely, 2^4213545 is an apocalyptic number.

It is an amenable number.

4213545 is a deficient number, since it is larger than the sum of its proper divisors (3491415).

4213545 is a wasteful number, since it uses less digits than its factorization.

4213545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40144.

The product of its digits is 2400, while the sum is 24.

The square root of 4213545 is about 2052.6921347343. The cubic root of 4213545 is about 161.5161220634.

Adding to 4213545 its reverse (5453124), we get a palindrome (9666669).

The spelling of 4213545 in words is "four million, two hundred thirteen thousand, five hundred forty-five".