723740141 has 2 divisors, whose sum is σ = 723740142. Its totient is φ = 723740140.

The previous prime is 723740081. The next prime is 723740161. The reversal of 723740141 is 141047327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628755625 + 94984516 = 25075^2 + 9746^2 .

It is a cyclic number.

It is not a de Polignac number, because 723740141 - 2¹⁰ = 723739117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723740161) 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 as a sum of consecutive naturals, namely, 361870070 + 361870071.

It is an arithmetic number, because the mean of its divisors is an integer number (361870071).

Almost surely, 2^723740141 is an apocalyptic number.

It is an amenable number.

723740141 is a deficient number, since it is larger than the sum of its proper divisors (1).

723740141 is an equidigital number, since it uses as much as digits as its factorization.

723740141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 723740141 is about 26902.4188689419. The cubic root of 723740141 is about 897.8302221350.

Adding to 723740141 its reverse (141047327), we get a palindrome (864787468).

The spelling of 723740141 in words is "seven hundred twenty-three million, seven hundred forty thousand, one hundred forty-one".