1150643520 has 336 divisors, whose sum is σ = 4330823952. Its totient is φ = 278691840.

The previous prime is 1150643509. The next prime is 1150643539. The reversal of 1150643520 is 253460511.

1150643520 is a `hidden beast` number, since 1 + 15 + 0 + 643 + 5 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 356756544 + 793886976 = 18888^2 + 28176^2 .

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, 2732910 + ... + 2733330.

It is an arithmetic number, because the mean of its divisors is an integer number (12889357).

Almost surely, 2^1150643520 is an apocalyptic number.

1150643520 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 1150643520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2165411976).

1150643520 is an abundant number, since it is smaller than the sum of its proper divisors (3180180432).

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

1150643520 is a wasteful number, since it uses less digits than its factorization.

1150643520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1150643520 is about 33921.1367734043. The cubic root of 1150643520 is about 1047.8849396823.

The spelling of 1150643520 in words is "one billion, one hundred fifty million, six hundred forty-three thousand, five hundred twenty".