1125155320 has 16 divisors (see below), whose sum is σ = 2531599560. Its totient is φ = 450062112.

The previous prime is 1125155303. The next prime is 1125155341. The reversal of 1125155320 is 235515211.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 14064402 + ... + 14064481.

Almost surely, 2^1125155320 is an apocalyptic number.

1125155320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125155320 is an abundant number, since it is smaller than the sum of its proper divisors (1406444240).

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

1125155320 is a wasteful number, since it uses less digits than its factorization.

1125155320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28128894 (or 28128890 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1125155320 is about 33543.3349564410. The cubic root of 1125155320 is about 1040.0897728226.

The spelling of 1125155320 in words is "one billion, one hundred twenty-five million, one hundred fifty-five thousand, three hundred twenty".