115858549 has 2 divisors, whose sum is σ = 115858550. Its totient is φ = 115858548.

The previous prime is 115858537. The next prime is 115858559. The reversal of 115858549 is 945858511.

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., 103734225 + 12124324 = 10185^2 + 3482^2 .

It is a cyclic number.

It is not a de Polignac number, because 115858549 - 2⁵ = 115858517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115858499 and 115858508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115858529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57929274 + 57929275.

It is an arithmetic number, because the mean of its divisors is an integer number (57929275).

Almost surely, 2^115858549 is an apocalyptic number.

It is an amenable number.

115858549 is a deficient number, since it is larger than the sum of its proper divisors (1).

115858549 is an equidigital number, since it uses as much as digits as its factorization.

115858549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 46.

The square root of 115858549 is about 10763.7609133611. The cubic root of 115858549 is about 487.5015808846.

The spelling of 115858549 in words is "one hundred fifteen million, eight hundred fifty-eight thousand, five hundred forty-nine".