722150217 has 6 divisors (see below), whose sum is σ = 1043105882. Its totient is φ = 481433472.

The previous prime is 722150161. The next prime is 722150227. The reversal of 722150217 is 712051227.

It can be written as a sum of positive squares in only one way, i.e., 548543241 + 173606976 = 23421^2 + 13176^2 .

It is not a de Polignac number, because 722150217 - 2¹⁸ = 721888073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722150227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40119448 + ... + 40119465.

Almost surely, 2^722150217 is an apocalyptic number.

It is an amenable number.

722150217 is a deficient number, since it is larger than the sum of its proper divisors (320955665).

722150217 is a wasteful number, since it uses less digits than its factorization.

722150217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80238919 (or 80238916 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 722150217 is about 26872.8527886416. The cubic root of 722150217 is about 897.1722841451.

The spelling of 722150217 in words is "seven hundred twenty-two million, one hundred fifty thousand, two hundred seventeen".