115400000 has 84 divisors (see below), whose sum is σ = 286723836. Its totient is φ = 46080000.

The previous prime is 115399997. The next prime is 115400017. The reversal of 115400000 is 4511.

It can be written as a sum of positive squares in 6 ways, for example, as 58125376 + 57274624 = 7624^2 + 7568^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199712 + ... + 200288.

It is an arithmetic number, because the mean of its divisors is an integer number (3413379).

Almost surely, 2^115400000 is an apocalyptic number.

115400000 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 115400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143361918).

115400000 is an abundant number, since it is smaller than the sum of its proper divisors (171323836).

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

115400000 is an frugal number, since it uses more digits than its factorization.

115400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 115400000 is about 10742.4392015966. The cubic root of 115400000 is about 486.8575802752.

Adding to 115400000 its reverse (4511), we get a palindrome (115404511).

The spelling of 115400000 in words is "one hundred fifteen million, four hundred thousand".