7223545 has 16 divisors (see below), whose sum is σ = 9970560. Its totient is φ = 4921344.

The previous prime is 7223543. The next prime is 7223549. The reversal of 7223545 is 5453227.

It is a cyclic number.

It is not a de Polignac number, because 7223545 - 2¹ = 7223543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7223543) 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, 5689 + ... + 6841.

It is an arithmetic number, because the mean of its divisors is an integer number (623160).

Almost surely, 2^7223545 is an apocalyptic number.

It is an amenable number.

7223545 is a deficient number, since it is larger than the sum of its proper divisors (2747015).

7223545 is a wasteful number, since it uses less digits than its factorization.

7223545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344.

The product of its digits is 8400, while the sum is 28.

The square root of 7223545 is about 2687.6653437510. The cubic root of 7223545 is about 193.3081335235.

The spelling of 7223545 in words is "seven million, two hundred twenty-three thousand, five hundred forty-five".