7222545 has 24 divisors (see below), whose sum is σ = 13658112. Its totient is φ = 3501600.

The previous prime is 7222517. The next prime is 7222549. The reversal of 7222545 is 5452227.

It is not a de Polignac number, because 7222545 - 2¹¹ = 7220497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7222549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6801 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (569088).

Almost surely, 2^7222545 is an apocalyptic number.

It is an amenable number.

7222545 is a deficient number, since it is larger than the sum of its proper divisors (6435567).

7222545 is a wasteful number, since it uses less digits than its factorization.

7222545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14613 (or 14610 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 7222545 is about 2687.4793022459. The cubic root of 7222545 is about 193.2992128318.

The spelling of 7222545 in words is "seven million, two hundred twenty-two thousand, five hundred forty-five".