1115534500 has 48 divisors (see below), whose sum is σ = 2542280832. Its totient is φ = 426808800.

The previous prime is 1115534471. The next prime is 1115534501. The reversal of 1115534500 is 54355111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1115534501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37002 + ... + 60001.

It is an arithmetic number, because the mean of its divisors is an integer number (52964184).

Almost surely, 2^1115534500 is an apocalyptic number.

1115534500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115534500 is an abundant number, since it is smaller than the sum of its proper divisors (1426746332).

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

1115534500 is a wasteful number, since it uses less digits than its factorization.

1115534500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97045 (or 97033 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1115534500 is about 33399.6182612916. The cubic root of 1115534500 is about 1037.1167985310.

Adding to 1115534500 its reverse (54355111), we get a palindrome (1169889611).

The spelling of 1115534500 in words is "one billion, one hundred fifteen million, five hundred thirty-four thousand, five hundred".