722162461 has 2 divisors, whose sum is σ = 722162462. Its totient is φ = 722162460.

The previous prime is 722162429. The next prime is 722162549. The reversal of 722162461 is 164261227.

722162461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 612562500 + 109599961 = 24750^2 + 10469^2 .

It is a cyclic number.

It is not a de Polignac number, because 722162461 - 2⁵ = 722162429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722162761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361081230 + 361081231.

It is an arithmetic number, because the mean of its divisors is an integer number (361081231).

Almost surely, 2^722162461 is an apocalyptic number.

It is an amenable number.

722162461 is a deficient number, since it is larger than the sum of its proper divisors (1).

722162461 is an equidigital number, since it uses as much as digits as its factorization.

722162461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 722162461 is about 26873.0806012262. The cubic root of 722162461 is about 897.1773546116.

The spelling of 722162461 in words is "seven hundred twenty-two million, one hundred sixty-two thousand, four hundred sixty-one".