1125306530 has 32 divisors (see below), whose sum is σ = 2105417664. Its totient is φ = 432668736.

The previous prime is 1125306529. The next prime is 1125306577. The reversal of 1125306530 is 356035211.

It is a self number, because there is not a number n which added to its sum of digits gives 1125306530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12389 + ... + 49031.

It is an arithmetic number, because the mean of its divisors is an integer number (65794302).

Almost surely, 2^1125306530 is an apocalyptic number.

1125306530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125306530 is a deficient number, since it is larger than the sum of its proper divisors (980111134).

1125306530 is a wasteful number, since it uses less digits than its factorization.

1125306530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36770.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1125306530 is about 33545.5888307241. The cubic root of 1125306530 is about 1040.1363634064.

The spelling of 1125306530 in words is "one billion, one hundred twenty-five million, three hundred six thousand, five hundred thirty".