115202209 has 8 divisors (see below), whose sum is σ = 116721000. Its totient is φ = 113692032.

The previous prime is 115202179. The next prime is 115202237. The reversal of 115202209 is 902202511.

It can be written as a sum of positive squares in 4 ways, for example, as 112225 + 115089984 = 335^2 + 10728^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 115202209 - 2⁵ = 115202177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115202209.

It is not an unprimeable number, because it can be changed into a prime (115202309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27357 + ... + 31285.

It is an arithmetic number, because the mean of its divisors is an integer number (14590125).

Almost surely, 2^115202209 is an apocalyptic number.

It is an amenable number.

115202209 is a deficient number, since it is larger than the sum of its proper divisors (1518791).

115202209 is a wasteful number, since it uses less digits than its factorization.

115202209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 115202209 is about 10733.2291972174. The cubic root of 115202209 is about 486.5792697149.

The spelling of 115202209 in words is "one hundred fifteen million, two hundred two thousand, two hundred nine".