1125735171 has 16 divisors (see below), whose sum is σ = 1644295680. Its totient is φ = 679404320.

The previous prime is 1125735167. The next prime is 1125735173. The reversal of 1125735171 is 1715375211.

It is a cyclic number.

It is not a de Polignac number, because 1125735171 - 2² = 1125735167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1125735173) 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, 63480 + ... + 79253.

It is an arithmetic number, because the mean of its divisors is an integer number (102768480).

Almost surely, 2^1125735171 is an apocalyptic number.

1125735171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1125735171 is a deficient number, since it is larger than the sum of its proper divisors (518560509).

1125735171 is a wasteful number, since it uses less digits than its factorization.

1125735171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142986.

The product of its digits is 7350, while the sum is 33.

The square root of 1125735171 is about 33551.9771548563. The cubic root of 1125735171 is about 1040.2684129064.

The spelling of 1125735171 in words is "one billion, one hundred twenty-five million, seven hundred thirty-five thousand, one hundred seventy-one".