1118253500 has 144 divisors (see below), whose sum is σ = 3060412992. Its totient is φ = 353808000.

The previous prime is 1118253497. The next prime is 1118253527. The reversal of 1118253500 is 53528111.

It is a happy number.

1118253500 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 1118253500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 316745 + ... + 320255.

It is an arithmetic number, because the mean of its divisors is an integer number (21252868).

Almost surely, 2^1118253500 is an apocalyptic number.

1118253500 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 1118253500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1530206496).

1118253500 is an abundant number, since it is smaller than the sum of its proper divisors (1942159492).

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

1118253500 is a wasteful number, since it uses less digits than its factorization.

1118253500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557 (or 3538 counting only the distinct ones).

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

The square root of 1118253500 is about 33440.2975465231. The cubic root of 1118253500 is about 1037.9587365091.

The spelling of 1118253500 in words is "one billion, one hundred eighteen million, two hundred fifty-three thousand, five hundred".