115506213 has 16 divisors (see below), whose sum is σ = 160951296. Its totient is φ = 73609200.

The previous prime is 115506199. The next prime is 115506229. The reversal of 115506213 is 312605511.

It is not a de Polignac number, because 115506213 - 2¹³ = 115498021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115506233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3463 + ... + 15588.

It is an arithmetic number, because the mean of its divisors is an integer number (10059456).

Almost surely, 2^115506213 is an apocalyptic number.

It is an amenable number.

115506213 is a deficient number, since it is larger than the sum of its proper divisors (45445083).

115506213 is a wasteful number, since it uses less digits than its factorization.

115506213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19144.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 115506213 is about 10747.3816811352. The cubic root of 115506213 is about 487.0069007479.

The spelling of 115506213 in words is "one hundred fifteen million, five hundred six thousand, two hundred thirteen".