115615201 has 4 divisors (see below), whose sum is σ = 124508692. Its totient is φ = 106721712.

The previous prime is 115615189. The next prime is 115615217. The reversal of 115615201 is 102516511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102516511 = 17 ⋅6030383.

It can be written as a sum of positive squares in 2 ways, for example, as 30514576 + 85100625 = 5524^2 + 9225^2 .

It is a cyclic number.

It is not a de Polignac number, because 115615201 - 2¹⁷ = 115484129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115615301) 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, 4446726 + ... + 4446751.

It is an arithmetic number, because the mean of its divisors is an integer number (31127173).

Almost surely, 2^115615201 is an apocalyptic number.

It is an amenable number.

115615201 is a deficient number, since it is larger than the sum of its proper divisors (8893491).

115615201 is an equidigital number, since it uses as much as digits as its factorization.

115615201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893490.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 115615201 is about 10752.4509299043. The cubic root of 115615201 is about 487.1600273525.

The spelling of 115615201 in words is "one hundred fifteen million, six hundred fifteen thousand, two hundred one".