7420521301 has 4 divisors (see below), whose sum is σ = 7857022572. Its totient is φ = 6984020032.

The previous prime is 7420521299. The next prime is 7420521343. The reversal of 7420521301 is 1031250247.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1031250247 = 31 ⋅33266137.

It can be written as a sum of positive squares in 2 ways, for example, as 2033108100 + 5387413201 = 45090^2 + 73399^2 .

It is a cyclic number.

It is not a de Polignac number, because 7420521301 - 2¹ = 7420521299 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 (7420521001) 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 3 ways as a sum of consecutive naturals, for example, 218250610 + ... + 218250643.

It is an arithmetic number, because the mean of its divisors is an integer number (1964255643).

Almost surely, 2^7420521301 is an apocalyptic number.

It is an amenable number.

7420521301 is a deficient number, since it is larger than the sum of its proper divisors (436501271).

7420521301 is a wasteful number, since it uses less digits than its factorization.

7420521301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436501270.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 7420521301 is about 86142.4477304888. The cubic root of 7420521301 is about 1950.4948383448.

Adding to 7420521301 its reverse (1031250247), we get a palindrome (8451771548).

The spelling of 7420521301 in words is "seven billion, four hundred twenty million, five hundred twenty-one thousand, three hundred one".