115458121 has 4 divisors (see below), whose sum is σ = 115690000. Its totient is φ = 115226244.

The previous prime is 115458107. The next prime is 115458131. The reversal of 115458121 is 121854511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115458121 - 2²¹ = 113360969 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 115458121.

It is not an unprimeable number, because it can be changed into a prime (115458131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115191 + ... + 116188.

It is an arithmetic number, because the mean of its divisors is an integer number (28922500).

Almost surely, 2^115458121 is an apocalyptic number.

It is an amenable number.

115458121 is a deficient number, since it is larger than the sum of its proper divisors (231879).

115458121 is an equidigital number, since it uses as much as digits as its factorization.

115458121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231878.

The product of its digits is 1600, while the sum is 28.

The square root of 115458121 is about 10745.1440660421. The cubic root of 115458121 is about 486.9393015353.

The spelling of 115458121 in words is "one hundred fifteen million, four hundred fifty-eight thousand, one hundred twenty-one".