722156041 has 2 divisors, whose sum is σ = 722156042. Its totient is φ = 722156040.

The previous prime is 722156033. The next prime is 722156053. The reversal of 722156041 is 140651227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561500416 + 160655625 = 23696^2 + 12675^2 .

It is an emirp because it is prime and its reverse (140651227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722156041 - 2³ = 722156033 is a prime.

It is a super-3 number, since 3×722156041³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (722156011) 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 as a sum of consecutive naturals, namely, 361078020 + 361078021.

It is an arithmetic number, because the mean of its divisors is an integer number (361078021).

Almost surely, 2^722156041 is an apocalyptic number.

It is an amenable number.

722156041 is a deficient number, since it is larger than the sum of its proper divisors (1).

722156041 is an equidigital number, since it uses as much as digits as its factorization.

722156041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 722156041 is about 26872.9611505692. The cubic root of 722156041 is about 897.1746959782.

The spelling of 722156041 in words is "seven hundred twenty-two million, one hundred fifty-six thousand, forty-one".