43223545 has 8 divisors (see below), whose sum is σ = 52071624. Its totient is φ = 34443264.

The previous prime is 43223539. The next prime is 43223549. The reversal of 43223545 is 54532234.

It can be written as a sum of positive squares in 4 ways, for example, as 6390784 + 36832761 = 2528^2 + 6069^2 .

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 43223545 - 2²³ = 34834937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43223549) 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, 15534 + ... + 18103.

It is an arithmetic number, because the mean of its divisors is an integer number (6508953).

Almost surely, 2^43223545 is an apocalyptic number.

It is an amenable number.

43223545 is a deficient number, since it is larger than the sum of its proper divisors (8848079).

43223545 is a wasteful number, since it uses less digits than its factorization.

43223545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33899.

The product of its digits is 14400, while the sum is 28.

The square root of 43223545 is about 6574.4615749124. The cubic root of 43223545 is about 350.9458633021.

Adding to 43223545 its reverse (54532234), we get a palindrome (97755779).

The spelling of 43223545 in words is "forty-three million, two hundred twenty-three thousand, five hundred forty-five".