115121107 has 4 divisors (see below), whose sum is σ = 115350480. Its totient is φ = 114891736.

The previous prime is 115121101. The next prime is 115121117. The reversal of 115121107 is 701121511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115121107 - 2¹⁹ = 114596819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115121101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113932 + ... + 114937.

It is an arithmetic number, because the mean of its divisors is an integer number (28837620).

Almost surely, 2^115121107 is an apocalyptic number.

115121107 is a deficient number, since it is larger than the sum of its proper divisors (229373).

115121107 is an equidigital number, since it uses as much as digits as its factorization.

115121107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229372.

The product of its (nonzero) digits is 70, while the sum is 19.

The square root of 115121107 is about 10729.4504519104. The cubic root of 115121107 is about 486.4650594742.

Adding to 115121107 its reverse (701121511), we get a palindrome (816242618).

The spelling of 115121107 in words is "one hundred fifteen million, one hundred twenty-one thousand, one hundred seven".