115124100 has 144 divisors (see below), whose sum is σ = 410057088. Its totient is φ = 24284160.

The previous prime is 115124099. The next prime is 115124101. The reversal of 115124100 is 1421511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115124099) and next prime (115124101).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 115124100.

It is not an unprimeable number, because it can be changed into a prime (115124101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25192 + ... + 29408.

Almost surely, 2^115124100 is an apocalyptic number.

115124100 is a gapful number since it is divisible by the number (10) 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 115124100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205028544).

115124100 is an abundant number, since it is smaller than the sum of its proper divisors (294932988).

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

115124100 is a wasteful number, since it uses less digits than its factorization.

115124100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254 (or 4247 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 115124100 is about 10729.5899269264. The cubic root of 115124100 is about 486.4692752586.

Adding to 115124100 its reverse (1421511), we get a palindrome (116545611).

The spelling of 115124100 in words is "one hundred fifteen million, one hundred twenty-four thousand, one hundred".