722173133 has 12 divisors (see below), whose sum is σ = 795971484. Its totient is φ = 654720000.

The previous prime is 722173121. The next prime is 722173183. The reversal of 722173133 is 331371227.

It can be written as a sum of positive squares in 2 ways, for example, as 511981129 + 210192004 = 22627^2 + 14498^2 .

It is not a de Polignac number, because 722173133 - 2¹² = 722169037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 722173096 and 722173105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722173183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37133 + ... + 53133.

It is an arithmetic number, because the mean of its divisors is an integer number (66330957).

Almost surely, 2^722173133 is an apocalyptic number.

It is an amenable number.

722173133 is a deficient number, since it is larger than the sum of its proper divisors (73798351).

722173133 is a wasteful number, since it uses less digits than its factorization.

722173133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16396 (or 16385 counting only the distinct ones).

The product of its digits is 5292, while the sum is 29.

The square root of 722173133 is about 26873.2791635111. The cubic root of 722173133 is about 897.1817740370.

The spelling of 722173133 in words is "seven hundred twenty-two million, one hundred seventy-three thousand, one hundred thirty-three".