1125403110 has 144 divisors (see below), whose sum is σ = 3307228704. Its totient is φ = 264895488.

The previous prime is 1125403073. The next prime is 1125403129. The reversal of 1125403110 is 113045211.

1125403110 is a `hidden beast` number, since 1 + 12 + 540 + 3 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 348222 + ... + 351438.

It is an arithmetic number, because the mean of its divisors is an integer number (22966866).

Almost surely, 2^1125403110 is an apocalyptic number.

1125403110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125403110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1653614352).

1125403110 is an abundant number, since it is smaller than the sum of its proper divisors (2181825594).

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

1125403110 is a wasteful number, since it uses less digits than its factorization.

1125403110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279 (or 3263 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1125403110 is about 33547.0283333710. The cubic root of 1125403110 is about 1040.1661192977.

Adding to 1125403110 its reverse (113045211), we get a palindrome (1238448321).

The spelling of 1125403110 in words is "one billion, one hundred twenty-five million, four hundred three thousand, one hundred ten".