115457305 has 4 divisors (see below), whose sum is σ = 138548772. Its totient is φ = 92365840.

The previous prime is 115457273. The next prime is 115457369. The reversal of 115457305 is 503754511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80066704 + 35390601 = 8948^2 + 5949^2 .

It is not a de Polignac number, because 115457305 - 2⁵ = 115457273 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11545726 + ... + 11545735.

It is an arithmetic number, because the mean of its divisors is an integer number (34637193).

Almost surely, 2^115457305 is an apocalyptic number.

It is an amenable number.

115457305 is a deficient number, since it is larger than the sum of its proper divisors (23091467).

115457305 is an equidigital number, since it uses as much as digits as its factorization.

115457305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23091466.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 115457305 is about 10745.1060953348. The cubic root of 115457305 is about 486.9381543851.

The spelling of 115457305 in words is "one hundred fifteen million, four hundred fifty-seven thousand, three hundred five".