115400205 has 48 divisors (see below), whose sum is σ = 213632640. Its totient is φ = 57456000.

The previous prime is 115400203. The next prime is 115400231. The reversal of 115400205 is 502004511.

It is not a de Polignac number, because 115400205 - 2¹ = 115400203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115400203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59755 + ... + 61655.

It is an arithmetic number, because the mean of its divisors is an integer number (4450680).

Almost surely, 2^115400205 is an apocalyptic number.

115400205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115400205 is a deficient number, since it is larger than the sum of its proper divisors (98232435).

115400205 is a wasteful number, since it uses less digits than its factorization.

115400205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 115400205 is about 10742.4487431870. The cubic root of 115400205 is about 486.8578685645.

Adding to 115400205 its reverse (502004511), we get a palindrome (617404716).

The spelling of 115400205 in words is "one hundred fifteen million, four hundred thousand, two hundred five".