115202173 has 2 divisors, whose sum is σ = 115202174. Its totient is φ = 115202172.

The previous prime is 115202159. The next prime is 115202177. The reversal of 115202173 is 371202511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112635769 + 2566404 = 10613^2 + 1602^2 .

It is an emirp because it is prime and its reverse (371202511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115202173 - 2⁹ = 115201661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115202177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57601086 + 57601087.

It is an arithmetic number, because the mean of its divisors is an integer number (57601087).

Almost surely, 2^115202173 is an apocalyptic number.

It is an amenable number.

115202173 is a deficient number, since it is larger than the sum of its proper divisors (1).

115202173 is an equidigital number, since it uses as much as digits as its factorization.

115202173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 115202173 is about 10733.2275201824. The cubic root of 115202173 is about 486.5792190306.

Adding to 115202173 its reverse (371202511), we get a palindrome (486404684).

The spelling of 115202173 in words is "one hundred fifteen million, two hundred two thousand, one hundred seventy-three".