1136509920 has 768 divisors, whose sum is σ = 5080320000. Its totient is φ = 235726848.

The previous prime is 1136509877. The next prime is 1136509939. The reversal of 1136509920 is 299056311.

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 127 ways as a sum of consecutive naturals, for example, 19262851 + ... + 19262909.

It is an arithmetic number, because the mean of its divisors is an integer number (6615000).

Almost surely, 2^1136509920 is an apocalyptic number.

1136509920 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 1136509920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160000).

1136509920 is an abundant number, since it is smaller than the sum of its proper divisors (3943810080).

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

1136509920 is a wasteful number, since it uses less digits than its factorization.

1136509920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 1136509920 is about 33712.1627903046. The cubic root of 1136509920 is about 1043.5767871098.

The spelling of 1136509920 in words is "one billion, one hundred thirty-six million, five hundred nine thousand, nine hundred twenty".