115723081 has 2 divisors, whose sum is σ = 115723082. Its totient is φ = 115723080.

The previous prime is 115723061. The next prime is 115723103. The reversal of 115723081 is 180327511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114682681 + 1040400 = 10709^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 115723081 - 2⁷ = 115722953 is a prime.

It is a super-2 number, since 2×115723081² = 26783662952265122, which contains 22 as substring.

It is equal to p_6611617 and since 115723081 and 6611617 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (115723001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57861540 + 57861541.

It is an arithmetic number, because the mean of its divisors is an integer number (57861541).

Almost surely, 2^115723081 is an apocalyptic number.

It is an amenable number.

115723081 is a deficient number, since it is larger than the sum of its proper divisors (1).

115723081 is an equidigital number, since it uses as much as digits as its factorization.

115723081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 115723081 is about 10757.4662909070. The cubic root of 115723081 is about 487.3115024917.

The spelling of 115723081 in words is "one hundred fifteen million, seven hundred twenty-three thousand, eighty-one".