1125751100 has 36 divisors (see below), whose sum is σ = 2549097264. Its totient is φ = 430721280.

The previous prime is 1125751091. The next prime is 1125751117. The reversal of 1125751100 is 11575211.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242429 + ... + 247028.

Almost surely, 2^1125751100 is an apocalyptic number.

1125751100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125751100 is an abundant number, since it is smaller than the sum of its proper divisors (1423346164).

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

1125751100 is a wasteful number, since it uses less digits than its factorization.

1125751100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489494 (or 489487 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 23.

The square root of 1125751100 is about 33552.2145319799. The cubic root of 1125751100 is about 1040.2733194356.

The spelling of 1125751100 in words is "one billion, one hundred twenty-five million, seven hundred fifty-one thousand, one hundred".