1125994320 has 240 divisors, whose sum is σ = 4368416832. Its totient is φ = 256880640.

The previous prime is 1125994313. The next prime is 1125994361. The reversal of 1125994320 is 234995211.

1125994320 is a `hidden beast` number, since 1 + 1 + 2 + 599 + 43 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130459 + ... + 138821.

Almost surely, 2^1125994320 is an apocalyptic number.

1125994320 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 1125994320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2184208416).

1125994320 is an abundant number, since it is smaller than the sum of its proper divisors (3242422512).

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

1125994320 is a wasteful number, since it uses less digits than its factorization.

1125994320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8410 (or 8401 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1125994320 is about 33555.8388361847. The cubic root of 1125994320 is about 1040.3482315121.

The spelling of 1125994320 in words is "one billion, one hundred twenty-five million, nine hundred ninety-four thousand, three hundred twenty".