115561124 has 48 divisors (see below), whose sum is σ = 242368896. Its totient is φ = 47174400.

The previous prime is 115561123. The next prime is 115561139. The reversal of 115561124 is 421165511.

It is a junction number, because it is equal to n+sod(n) for n = 115561093 and 115561102.

It is not an unprimeable number, because it can be changed into a prime (115561123) 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 in 15 ways as a sum of consecutive naturals, for example, 48194 + ... + 50534.

It is an arithmetic number, because the mean of its divisors is an integer number (5049352).

Almost surely, 2^115561124 is an apocalyptic number.

115561124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115561124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121184448).

115561124 is an abundant number, since it is smaller than the sum of its proper divisors (126807772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115561124 is a wasteful number, since it uses less digits than its factorization.

115561124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436 (or 2434 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 115561124 is about 10749.9359998095. The cubic root of 115561124 is about 487.0840619634.

The spelling of 115561124 in words is "one hundred fifteen million, five hundred sixty-one thousand, one hundred twenty-four".