7354739521 has 2 divisors, whose sum is σ = 7354739522. Its totient is φ = 7354739520.

The previous prime is 7354739519. The next prime is 7354739533. The reversal of 7354739521 is 1259374537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6680610225 + 674129296 = 81735^2 + 25964^2 .

It is an emirp because it is prime and its reverse (1259374537) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7354739521 - 2¹ = 7354739519 is a prime.

Together with 7354739519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7354739321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3677369760 + 3677369761.

It is an arithmetic number, because the mean of its divisors is an integer number (3677369761).

Almost surely, 2^7354739521 is an apocalyptic number.

It is an amenable number.

7354739521 is a deficient number, since it is larger than the sum of its proper divisors (1).

7354739521 is an equidigital number, since it uses as much as digits as its factorization.

7354739521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 46.

The square root of 7354739521 is about 85759.7779906175. Note that the first 3 decimals coincide. The cubic root of 7354739521 is about 1944.7141105432.

The spelling of 7354739521 in words is "seven billion, three hundred fifty-four million, seven hundred thirty-nine thousand, five hundred twenty-one".