1150021530 has 128 divisors (see below), whose sum is σ = 3514060800. Its totient is φ = 262170432.

The previous prime is 1150021517. The next prime is 1150021589. The reversal of 1150021530 is 351200511.

1150021530 is a `hidden beast` number, since 11 + 500 + 2 + 153 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1169419 + ... + 1170401.

It is an arithmetic number, because the mean of its divisors is an integer number (27453600).

Almost surely, 2^1150021530 is an apocalyptic number.

1150021530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1150021530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757030400).

1150021530 is an abundant number, since it is smaller than the sum of its proper divisors (2364039270).

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

1150021530 is a wasteful number, since it uses less digits than its factorization.

1150021530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1150021530 is about 33911.9673566722. The cubic root of 1150021530 is about 1047.6960913210.

The spelling of 1150021530 in words is "one billion, one hundred fifty million, twenty-one thousand, five hundred thirty".