716730181 has 2 divisors, whose sum is σ = 716730182. Its totient is φ = 716730180.

The previous prime is 716730173. The next prime is 716730221. The reversal of 716730181 is 181037617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359709156 + 357021025 = 18966^2 + 18895^2 .

It is a cyclic number.

It is not a de Polignac number, because 716730181 - 2³ = 716730173 is a prime.

It is a super-2 number, since 2×716730181² = 1027404304712585522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716737181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358365090 + 358365091.

It is an arithmetic number, because the mean of its divisors is an integer number (358365091).

Almost surely, 2^716730181 is an apocalyptic number.

It is an amenable number.

716730181 is a deficient number, since it is larger than the sum of its proper divisors (1).

716730181 is an equidigital number, since it uses as much as digits as its factorization.

716730181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 716730181 is about 26771.8169163021. The cubic root of 716730181 is about 894.9220955255.

Adding to 716730181 its reverse (181037617), we get a palindrome (897767798).

The spelling of 716730181 in words is "seven hundred sixteen million, seven hundred thirty thousand, one hundred eighty-one".