115980205 has 32 divisors (see below), whose sum is σ = 161958528. Its totient is φ = 78796800.

The previous prime is 115980203. The next prime is 115980223. The reversal of 115980205 is 502089511.

It is not a de Polignac number, because 115980205 - 2¹ = 115980203 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 (115980203) 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, 152025 + ... + 152785.

It is an arithmetic number, because the mean of its divisors is an integer number (5061204).

Almost surely, 2^115980205 is an apocalyptic number.

It is an amenable number.

115980205 is a deficient number, since it is larger than the sum of its proper divisors (45978323).

115980205 is a wasteful number, since it uses less digits than its factorization.

115980205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 115980205 is about 10769.4106152565. The cubic root of 115980205 is about 487.6721530940.

The spelling of 115980205 in words is "one hundred fifteen million, nine hundred eighty thousand, two hundred five".