115615101 has 32 divisors (see below), whose sum is σ = 181336320. Its totient is φ = 64157184.

The previous prime is 115615081. The next prime is 115615103. The reversal of 115615101 is 101516511.

It is a happy number.

It is not a de Polignac number, because 115615101 - 2⁶ = 115615037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115615103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120841 + ... + 121793.

It is an arithmetic number, because the mean of its divisors is an integer number (5666760).

Almost surely, 2^115615101 is an apocalyptic number.

It is an amenable number.

115615101 is a deficient number, since it is larger than the sum of its proper divisors (65721219).

115615101 is a wasteful number, since it uses less digits than its factorization.

115615101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125.

The product of its (nonzero) digits is 150, while the sum is 21.

The square root of 115615101 is about 10752.4462798007. The cubic root of 115615101 is about 487.1598868981.

The spelling of 115615101 in words is "one hundred fifteen million, six hundred fifteen thousand, one hundred one".