115615605 has 64 divisors (see below), whose sum is σ = 224040960. Its totient is φ = 49787136.

The previous prime is 115615579. The next prime is 115615607. The reversal of 115615605 is 506516511.

It is not a de Polignac number, because 115615605 - 2⁶ = 115615541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115615607) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130494 + ... + 131376.

It is an arithmetic number, because the mean of its divisors is an integer number (3500640).

Almost surely, 2^115615605 is an apocalyptic number.

115615605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115615605 is a deficient number, since it is larger than the sum of its proper divisors (108425355).

115615605 is a wasteful number, since it uses less digits than its factorization.

115615605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 115615605 is about 10752.4697163024. The cubic root of 115615605 is about 487.1605947878.

It can be divided in two parts, 1156 and 15605, that added together give a palindrome (16761).

The spelling of 115615605 in words is "one hundred fifteen million, six hundred fifteen thousand, six hundred five".