722306141 has 2 divisors, whose sum is σ = 722306142. Its totient is φ = 722306140.

The previous prime is 722306087. The next prime is 722306171. The reversal of 722306141 is 141603227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409900516 + 312405625 = 20246^2 + 17675^2 .

It is a cyclic number.

It is not a de Polignac number, because 722306141 - 2²² = 718111837 is a prime.

It is a super-2 number, since 2×722306141² = 1043452322652623762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 722306141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722306171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361153070 + 361153071.

It is an arithmetic number, because the mean of its divisors is an integer number (361153071).

Almost surely, 2^722306141 is an apocalyptic number.

It is an amenable number.

722306141 is a deficient number, since it is larger than the sum of its proper divisors (1).

722306141 is an equidigital number, since it uses as much as digits as its factorization.

722306141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 722306141 is about 26875.7537754758. The cubic root of 722306141 is about 897.2368508705.

Adding to 722306141 its reverse (141603227), we get a palindrome (863909368).

The spelling of 722306141 in words is "seven hundred twenty-two million, three hundred six thousand, one hundred forty-one".