1121725912 has 8 divisors (see below), whose sum is σ = 2103236100. Its totient is φ = 560862952.

The previous prime is 1121725873. The next prime is 1121725991. The reversal of 1121725912 is 2195271211.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70107862 + ... + 70107877.

Almost surely, 2^1121725912 is an apocalyptic number.

It is an amenable number.

1121725912 is a deficient number, since it is larger than the sum of its proper divisors (981510188).

1121725912 is a wasteful number, since it uses less digits than its factorization.

1121725912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140215745 (or 140215741 counting only the distinct ones).

The product of its digits is 2520, while the sum is 31.

The square root of 1121725912 is about 33492.1768775934. The cubic root of 1121725912 is about 1039.0319863504.

The spelling of 1121725912 in words is "one billion, one hundred twenty-one million, seven hundred twenty-five thousand, nine hundred twelve".