115389193 has 2 divisors, whose sum is σ = 115389194. Its totient is φ = 115389192.

The previous prime is 115389187. The next prime is 115389221. The reversal of 115389193 is 391983511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115089984 + 299209 = 10728^2 + 547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115389193 is a prime.

It is a super-2 number, since 2×115389193² = 26629331722382498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115389133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57694596 + 57694597.

It is an arithmetic number, because the mean of its divisors is an integer number (57694597).

Almost surely, 2^115389193 is an apocalyptic number.

It is an amenable number.

115389193 is a deficient number, since it is larger than the sum of its proper divisors (1).

115389193 is an equidigital number, since it uses as much as digits as its factorization.

115389193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 40.

The square root of 115389193 is about 10741.9361848784. The cubic root of 115389193 is about 486.8423820253.

The spelling of 115389193 in words is "one hundred fifteen million, three hundred eighty-nine thousand, one hundred ninety-three".