7216125739 has 2 divisors, whose sum is σ = 7216125740. Its totient is φ = 7216125738.

The previous prime is 7216125737. The next prime is 7216125757. The reversal of 7216125739 is 9375216127.

7216125739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (9375216127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7216125739 - 2¹ = 7216125737 is a prime.

It is a super-2 number, since 2×7216125739² (a number of 21 digits) contains 22 as substring.

Together with 7216125737, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7216125695 and 7216125704.

It is not a weakly prime, because it can be changed into another prime (7216125737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608062869 + 3608062870.

It is an arithmetic number, because the mean of its divisors is an integer number (3608062870).

Almost surely, 2^7216125739 is an apocalyptic number.

7216125739 is a deficient number, since it is larger than the sum of its proper divisors (1).

7216125739 is an equidigital number, since it uses as much as digits as its factorization.

7216125739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 43.

The square root of 7216125739 is about 84947.7824254406. The cubic root of 7216125739 is about 1932.4192896621.

The spelling of 7216125739 in words is "seven billion, two hundred sixteen million, one hundred twenty-five thousand, seven hundred thirty-nine".