115561394 has 8 divisors (see below), whose sum is σ = 186676140. Its totient is φ = 53336016.

The previous prime is 115561373. The next prime is 115561417. The reversal of 115561394 is 493165511.

It can be written as a sum of positive squares in 2 ways, for example, as 104305369 + 11256025 = 10213^2 + 3355^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222309 + ... + 2222360.

Almost surely, 2^115561394 is an apocalyptic number.

115561394 is a deficient number, since it is larger than the sum of its proper divisors (71114746).

115561394 is a wasteful number, since it uses less digits than its factorization.

115561394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444684.

The product of its digits is 16200, while the sum is 35.

The square root of 115561394 is about 10749.9485580165. The cubic root of 115561394 is about 487.0844413083.

The spelling of 115561394 in words is "one hundred fifteen million, five hundred sixty-one thousand, three hundred ninety-four".