115121517 has 16 divisors (see below), whose sum is σ = 177163392. Its totient is φ = 65131200.

The previous prime is 115121491. The next prime is 115121519. The reversal of 115121517 is 715121511.

It is not a de Polignac number, because 115121517 - 2⁶ = 115121453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115121519) 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 15 ways as a sum of consecutive naturals, for example, 25018 + ... + 29259.

It is an arithmetic number, because the mean of its divisors is an integer number (11072712).

Almost surely, 2^115121517 is an apocalyptic number.

It is an amenable number.

115121517 is a deficient number, since it is larger than the sum of its proper divisors (62041875).

115121517 is a wasteful number, since it uses less digits than its factorization.

115121517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54388.

The product of its digits is 350, while the sum is 24.

The square root of 115121517 is about 10729.4695581841. The cubic root of 115121517 is about 486.4656369833.

The spelling of 115121517 in words is "one hundred fifteen million, one hundred twenty-one thousand, five hundred seventeen".