1155520930 has 16 divisors (see below), whose sum is σ = 2096317440. Its totient is φ = 458568432.

The previous prime is 1155520903. The next prime is 1155520931. The reversal of 1155520930 is 390255511.

It is a junction number, because it is equal to n+sod(n) for n = 1155520892 and 1155520901.

It is not an unprimeable number, because it can be changed into a prime (1155520931) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 453660 + ... + 456199.

It is an arithmetic number, because the mean of its divisors is an integer number (131019840).

Almost surely, 2^1155520930 is an apocalyptic number.

1155520930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155520930 is a deficient number, since it is larger than the sum of its proper divisors (940796510).

1155520930 is a wasteful number, since it uses less digits than its factorization.

1155520930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909993.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 1155520930 is about 33992.9541228767. The cubic root of 1155520930 is about 1049.3634630213.

The spelling of 1155520930 in words is "one billion, one hundred fifty-five million, five hundred twenty thousand, nine hundred thirty".