115135400 has 24 divisors (see below), whose sum is σ = 267690270. Its totient is φ = 46054080.

The previous prime is 115135393. The next prime is 115135403. The reversal of 115135400 is 4531511.

It can be written as a sum of positive squares in 3 ways, for example, as 41964484 + 73170916 = 6478^2 + 8554^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (115135403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 287639 + ... + 288038.

Almost surely, 2^115135400 is an apocalyptic number.

115135400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115135400 is an abundant number, since it is smaller than the sum of its proper divisors (152554870).

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

115135400 is a wasteful number, since it uses less digits than its factorization.

115135400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575693 (or 575684 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115135400 is about 10730.1164951738. The cubic root of 115135400 is about 486.4851911933.

Adding to 115135400 its reverse (4531511), we get a palindrome (119666911).

The spelling of 115135400 in words is "one hundred fifteen million, one hundred thirty-five thousand, four hundred".