1113551800 has 48 divisors (see below), whose sum is σ = 2652174000. Its totient is φ = 434553600.

The previous prime is 1113551797. The next prime is 1113551807. The reversal of 1113551800 is 81553111.

It is a super-2 number, since 2×1113551800² = 2479995222566480000, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113551807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59700 + ... + 76099.

It is an arithmetic number, because the mean of its divisors is an integer number (55253625).

Almost surely, 2^1113551800 is an apocalyptic number.

1113551800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113551800 is an abundant number, since it is smaller than the sum of its proper divisors (1538622200).

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

1113551800 is a wasteful number, since it uses less digits than its factorization.

1113551800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135856 (or 135847 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 25.

The square root of 1113551800 is about 33369.9235839700. The cubic root of 1113551800 is about 1036.5019928232.

The spelling of 1113551800 in words is "one billion, one hundred thirteen million, five hundred fifty-one thousand, eight hundred".