115105013 has 4 divisors (see below), whose sum is σ = 116681868. Its totient is φ = 113528160.

The previous prime is 115104991. The next prime is 115105027. The reversal of 115105013 is 310501511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310501511 = 10303 ⋅30137.

It can be written as a sum of positive squares in 2 ways, for example, as 32058244 + 83046769 = 5662^2 + 9113^2 .

It is a cyclic number.

It is not a de Polignac number, because 115105013 - 2¹⁴ = 115088629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115104982 and 115105000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115105043) 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 in 3 ways as a sum of consecutive naturals, for example, 788318 + ... + 788463.

It is an arithmetic number, because the mean of its divisors is an integer number (29170467).

Almost surely, 2^115105013 is an apocalyptic number.

It is an amenable number.

115105013 is a deficient number, since it is larger than the sum of its proper divisors (1576855).

115105013 is an equidigital number, since it uses as much as digits as its factorization.

115105013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576854.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 115105013 is about 10728.7004338829. The cubic root of 115105013 is about 486.4423890484.

Adding to 115105013 its reverse (310501511), we get a palindrome (425606524).

The spelling of 115105013 in words is "one hundred fifteen million, one hundred five thousand, thirteen".