7125483821 has 4 divisors (see below), whose sum is σ = 7125652992. Its totient is φ = 7125314652.

The previous prime is 7125483809. The next prime is 7125483829. The reversal of 7125483821 is 1283845217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1283845217 = 71 ⋅18082327.

It is a cyclic number.

It is not a de Polignac number, because 7125483821 - 2¹⁰ = 7125482797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125483829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34196 + ... + 124178.

It is an arithmetic number, because the mean of its divisors is an integer number (1781413248).

Almost surely, 2^7125483821 is an apocalyptic number.

It is an amenable number.

7125483821 is a deficient number, since it is larger than the sum of its proper divisors (169171).

7125483821 is an equidigital number, since it uses as much as digits as its factorization.

7125483821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169170.

The product of its digits is 107520, while the sum is 41.

The square root of 7125483821 is about 84412.5809402840. The cubic root of 7125483821 is about 1924.2941198728.

The spelling of 7125483821 in words is "seven billion, one hundred twenty-five million, four hundred eighty-three thousand, eight hundred twenty-one".