7281125735 has 16 divisors (see below), whose sum is σ = 9423130080. Its totient is φ = 5369016960.

The previous prime is 7281125693. The next prime is 7281125791. The reversal of 7281125735 is 5375211827.

It is a de Polignac number, because none of the positive numbers 2^k-7281125735 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7281125692 and 7281125701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36140 + ... + 125969.

It is an arithmetic number, because the mean of its divisors is an integer number (588945630).

Almost surely, 2^7281125735 is an apocalyptic number.

7281125735 is a deficient number, since it is larger than the sum of its proper divisors (2142004345).

7281125735 is a wasteful number, since it uses less digits than its factorization.

7281125735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162818.

The product of its digits is 117600, while the sum is 41.

The square root of 7281125735 is about 85329.5126846509. The cubic root of 7281125735 is about 1938.2041104276.

The spelling of 7281125735 in words is "seven billion, two hundred eighty-one million, one hundred twenty-five thousand, seven hundred thirty-five".