115245505 has 4 divisors (see below), whose sum is σ = 138294612. Its totient is φ = 92196400.

The previous prime is 115245503. The next prime is 115245509. The reversal of 115245505 is 505542511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505542511 = 1861 ⋅271651.

It can be written as a sum of positive squares in 2 ways, for example, as 74080449 + 41165056 = 8607^2 + 6416^2 .

It is not a de Polignac number, because 115245505 - 2¹ = 115245503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115245503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11524546 + ... + 11524555.

It is an arithmetic number, because the mean of its divisors is an integer number (34573653).

Almost surely, 2^115245505 is an apocalyptic number.

It is an amenable number.

115245505 is a deficient number, since it is larger than the sum of its proper divisors (23049107).

115245505 is an equidigital number, since it uses as much as digits as its factorization.

115245505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23049106.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 115245505 is about 10735.2459217290. The cubic root of 115245505 is about 486.6402184810.

The spelling of 115245505 in words is "one hundred fifteen million, two hundred forty-five thousand, five hundred five".