1125755529 has 16 divisors (see below), whose sum is σ = 1580884800. Its totient is φ = 710608896.

The previous prime is 1125755509. The next prime is 1125755551. The reversal of 1125755529 is 9255575211.

It is not a de Polignac number, because 1125755529 - 2¹⁵ = 1125722761 is a prime.

It is a super-2 number, since 2×1125755529² = 2534651022148139682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125755509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125217 + ... + 133905.

It is an arithmetic number, because the mean of its divisors is an integer number (98805300).

Almost surely, 2^1125755529 is an apocalyptic number.

1125755529 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1125755529 is a deficient number, since it is larger than the sum of its proper divisors (455129271).

1125755529 is a wasteful number, since it uses less digits than its factorization.

1125755529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10984.

The product of its digits is 157500, while the sum is 42.

The square root of 1125755529 is about 33552.2805335196. The cubic root of 1125755529 is about 1040.2746836698.

The spelling of 1125755529 in words is "one billion, one hundred twenty-five million, seven hundred fifty-five thousand, five hundred twenty-nine".