1155520916 has 12 divisors (see below), whose sum is σ = 2205994560. Its totient is φ = 525236760.

The previous prime is 1155520903. The next prime is 1155520931. The reversal of 1155520916 is 6190255511.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 13130876 + ... + 13130963.

It is an arithmetic number, because the mean of its divisors is an integer number (183832880).

Almost surely, 2^1155520916 is an apocalyptic number.

It is an amenable number.

1155520916 is a deficient number, since it is larger than the sum of its proper divisors (1050473644).

1155520916 is a wasteful number, since it uses less digits than its factorization.

1155520916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26261854 (or 26261852 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 35.

The square root of 1155520916 is about 33992.9539169517. The cubic root of 1155520916 is about 1049.3634587834.

The spelling of 1155520916 in words is "one billion, one hundred fifty-five million, five hundred twenty thousand, nine hundred sixteen".