1121752500 has 120 divisors (see below), whose sum is σ = 3568332768. Its totient is φ = 271920000.

The previous prime is 1121752493. The next prime is 1121752517. The reversal of 1121752500 is 52571211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 75702 + ... + 89298.

Almost surely, 2^1121752500 is an apocalyptic number.

1121752500 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 1121752500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784166384).

1121752500 is an abundant number, since it is smaller than the sum of its proper divisors (2446580268).

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

1121752500 is a wasteful number, since it uses less digits than its factorization.

1121752500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13635 (or 13618 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 1121752500 is about 33492.5738037554. The cubic root of 1121752500 is about 1039.0401955941.

The spelling of 1121752500 in words is "one billion, one hundred twenty-one million, seven hundred fifty-two thousand, five hundred".