115534121 has 2 divisors, whose sum is σ = 115534122. Its totient is φ = 115534120.

The previous prime is 115534109. The next prime is 115534123. The reversal of 115534121 is 121435511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84842521 + 30691600 = 9211^2 + 5540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115534121 is a prime.

Together with 115534123, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_6601424 and since 115534121 and 6601424 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (115534123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57767060 + 57767061.

It is an arithmetic number, because the mean of its divisors is an integer number (57767061).

Almost surely, 2^115534121 is an apocalyptic number.

It is an amenable number.

115534121 is a deficient number, since it is larger than the sum of its proper divisors (1).

115534121 is an equidigital number, since it uses as much as digits as its factorization.

115534121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600, while the sum is 23.

The square root of 115534121 is about 10748.6799654655. The cubic root of 115534121 is about 487.0461202662.

Adding to 115534121 its reverse (121435511), we get a palindrome (236969632).

The spelling of 115534121 in words is "one hundred fifteen million, five hundred thirty-four thousand, one hundred twenty-one".