115400105 has 8 divisors (see below), whose sum is σ = 140750664. Its totient is φ = 90806400.

The previous prime is 115400093. The next prime is 115400113. The reversal of 115400105 is 501004511.

It can be written as a sum of positive squares in 4 ways, for example, as 2785561 + 112614544 = 1669^2 + 10612^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115400105 - 2⁶ = 115400041 is a prime.

It is a super-2 number, since 2×115400105² = 26634368468022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188876 + ... + 189485.

It is an arithmetic number, because the mean of its divisors is an integer number (17593833).

Almost surely, 2^115400105 is an apocalyptic number.

It is an amenable number.

115400105 is a deficient number, since it is larger than the sum of its proper divisors (25350559).

115400105 is an equidigital number, since it uses as much as digits as its factorization.

115400105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378427.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 115400105 is about 10742.4440887537. Note that the first 3 decimals coincide. The cubic root of 115400105 is about 486.8577279356.

Adding to 115400105 its reverse (501004511), we get a palindrome (616404616).

The spelling of 115400105 in words is "one hundred fifteen million, four hundred thousand, one hundred five".