115510005 has 24 divisors (see below), whose sum is σ = 215619768. Its totient is φ = 56866176.

The previous prime is 115510001. The next prime is 115510013. The reversal of 115510005 is 500015511.

It can be written as a sum of positive squares in 4 ways, for example, as 33489 + 115476516 = 183^2 + 10746^2 .

It is not a de Polignac number, because 115510005 - 2² = 115510001 is a prime.

It is a super-2 number, since 2×115510005² = 26685122510200050, which contains 22 as substring.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 115510005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115510001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98142 + ... + 99311.

It is an arithmetic number, because the mean of its divisors is an integer number (8984157).

Almost surely, 2^115510005 is an apocalyptic number.

115510005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115510005 is a deficient number, since it is larger than the sum of its proper divisors (100109763).

115510005 is a wasteful number, since it uses less digits than its factorization.

115510005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197477 (or 197474 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 115510005 is about 10747.5580947488. The cubic root of 115510005 is about 487.0122300715.

Adding to 115510005 its reverse (500015511), we get a palindrome (615525516).

The spelling of 115510005 in words is "one hundred fifteen million, five hundred ten thousand, five".