1155075530 has 24 divisors (see below), whose sum is σ = 2418587748. Its totient is φ = 396025728.

The previous prime is 1155075517. The next prime is 1155075577. The reversal of 1155075530 is 355705511.

It can be written as a sum of positive squares in 2 ways, for example, as 1049047321 + 106028209 = 32389^2 + 10297^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1178159 + ... + 1179138.

Almost surely, 2^1155075530 is an apocalyptic number.

1155075530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155075530 is an abundant number, since it is smaller than the sum of its proper divisors (1263512218).

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

1155075530 is a wasteful number, since it uses less digits than its factorization.

1155075530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357318 (or 2357311 counting only the distinct ones).

The product of its (nonzero) digits is 13125, while the sum is 32.

The square root of 1155075530 is about 33986.4021337946. The cubic root of 1155075530 is about 1049.2286186295.

The spelling of 1155075530 in words is "one billion, one hundred fifty-five million, seventy-five thousand, five hundred thirty".