1125115400 has 48 divisors (see below), whose sum is σ = 2753581200. Its totient is φ = 426358080.

The previous prime is 1125115391. The next prime is 1125115421. The reversal of 1125115400 is 45115211.

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

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 11 ways as a sum of consecutive naturals, for example, 144242 + ... + 151841.

It is an arithmetic number, because the mean of its divisors is an integer number (57366275).

Almost surely, 2^1125115400 is an apocalyptic number.

1125115400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125115400 is an abundant number, since it is smaller than the sum of its proper divisors (1628465800).

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

1125115400 is a wasteful number, since it uses less digits than its factorization.

1125115400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296118 (or 296109 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1125115400 is about 33542.7399000141. The cubic root of 1125115400 is about 1040.0774720394.

The spelling of 1125115400 in words is "one billion, one hundred twenty-five million, one hundred fifteen thousand, four hundred".