115120251 has 16 divisors (see below), whose sum is σ = 174709920. Its totient is φ = 74874240.

The previous prime is 115120223. The next prime is 115120289. The reversal of 115120251 is 152021511.

It is not a de Polignac number, because 115120251 - 2¹⁷ = 114989179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115160251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50890 + ... + 53103.

It is an arithmetic number, because the mean of its divisors is an integer number (10919370).

Almost surely, 2^115120251 is an apocalyptic number.

115120251 is a deficient number, since it is larger than the sum of its proper divisors (59589669).

115120251 is a wasteful number, since it uses less digits than its factorization.

115120251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104043 (or 104037 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 115120251 is about 10729.4105616292. The cubic root of 115120251 is about 486.4638537436.

Adding to 115120251 its reverse (152021511), we get a palindrome (267141762).

The spelling of 115120251 in words is "one hundred fifteen million, one hundred twenty thousand, two hundred fifty-one".