115205101 has 4 divisors (see below), whose sum is σ = 125678304. Its totient is φ = 104731900.

The previous prime is 115205099. The next prime is 115205143. The reversal of 115205101 is 101502511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115205101 - 2¹ = 115205099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115205171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5236585 + ... + 5236606.

It is an arithmetic number, because the mean of its divisors is an integer number (31419576).

Almost surely, 2^115205101 is an apocalyptic number.

115205101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115205101 is a deficient number, since it is larger than the sum of its proper divisors (10473203).

115205101 is a wasteful number, since it uses less digits than its factorization.

115205101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10473202.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 115205101 is about 10733.3639181759. The cubic root of 115205101 is about 486.5833413251.

Adding to 115205101 its reverse (101502511), we get a palindrome (216707612).

The spelling of 115205101 in words is "one hundred fifteen million, two hundred five thousand, one hundred one".