115546813 has 2 divisors, whose sum is σ = 115546814. Its totient is φ = 115546812.

The previous prime is 115546801. The next prime is 115546843. The reversal of 115546813 is 318645511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112317604 + 3229209 = 10598^2 + 1797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115546813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115546843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57773406 + 57773407.

It is an arithmetic number, because the mean of its divisors is an integer number (57773407).

Almost surely, 2^115546813 is an apocalyptic number.

It is an amenable number.

115546813 is a deficient number, since it is larger than the sum of its proper divisors (1).

115546813 is an equidigital number, since it uses as much as digits as its factorization.

115546813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 34.

The square root of 115546813 is about 10749.2703473306. The cubic root of 115546813 is about 487.0639544291.

The spelling of 115546813 in words is "one hundred fifteen million, five hundred forty-six thousand, eight hundred thirteen".