115121513 has 8 divisors (see below), whose sum is σ = 130502400. Its totient is φ = 100672848.

The previous prime is 115121491. The next prime is 115121519. The reversal of 115121513 is 315121511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115121513 - 2¹⁸ = 114859369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115121519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232793 + ... + 233286.

It is an arithmetic number, because the mean of its divisors is an integer number (16312800).

Almost surely, 2^115121513 is an apocalyptic number.

115121513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

115121513 is a deficient number, since it is larger than the sum of its proper divisors (15380887).

115121513 is a wasteful number, since it uses less digits than its factorization.

115121513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466111.

The product of its digits is 150, while the sum is 20.

The square root of 115121513 is about 10729.4693717816. The cubic root of 115121513 is about 486.4656313490.

The spelling of 115121513 in words is "one hundred fifteen million, one hundred twenty-one thousand, five hundred thirteen".