9452020381 has 2 divisors, whose sum is σ = 9452020382. Its totient is φ = 9452020380.

The previous prime is 9452020297. The next prime is 9452020393. The reversal of 9452020381 is 1830202549.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8391476025 + 1060544356 = 91605^2 + 32566^2 .

It is a cyclic number.

It is not a de Polignac number, because 9452020381 - 2¹¹ = 9452018333 is a prime.

It is a super-3 number, since 3×9452020381³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9452020181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4726010190 + 4726010191.

It is an arithmetic number, because the mean of its divisors is an integer number (4726010191).

Almost surely, 2^9452020381 is an apocalyptic number.

It is an amenable number.

9452020381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9452020381 is an equidigital number, since it uses as much as digits as its factorization.

9452020381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 9452020381 is about 97221.5016392979. The cubic root of 9452020381 is about 2114.3402779674.

The spelling of 9452020381 in words is "nine billion, four hundred fifty-two million, twenty thousand, three hundred eighty-one".