7130781533 has 8 divisors (see below), whose sum is σ = 7153582080. Its totient is φ = 7108002720.

The previous prime is 7130781443. The next prime is 7130781613. The reversal of 7130781533 is 3351870317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7130781533 - 2⁸ = 7130781277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7100781533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866468 + ... + 874658.

It is an arithmetic number, because the mean of its divisors is an integer number (894197760).

Almost surely, 2^7130781533 is an apocalyptic number.

It is an amenable number.

7130781533 is a deficient number, since it is larger than the sum of its proper divisors (22800547).

7130781533 is a wasteful number, since it uses less digits than its factorization.

7130781533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10867.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 7130781533 is about 84443.9549819879. The cubic root of 7130781533 is about 1924.7708982872.

The spelling of 7130781533 in words is "seven billion, one hundred thirty million, seven hundred eighty-one thousand, five hundred thirty-three".