115138648 has 8 divisors (see below), whose sum is σ = 215884980. Its totient is φ = 57569320.

The previous prime is 115138643. The next prime is 115138693. The reversal of 115138648 is 846831511.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115138643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7196158 + ... + 7196173.

Almost surely, 2^115138648 is an apocalyptic number.

It is an amenable number.

115138648 is a deficient number, since it is larger than the sum of its proper divisors (100746332).

115138648 is a wasteful number, since it uses less digits than its factorization.

115138648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14392337 (or 14392333 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 115138648 is about 10730.2678438145. The cubic root of 115138648 is about 486.4897657755.

The spelling of 115138648 in words is "one hundred fifteen million, one hundred thirty-eight thousand, six hundred forty-eight".