9045707381 has 2 divisors, whose sum is σ = 9045707382. Its totient is φ = 9045707380.

The previous prime is 9045707371. The next prime is 9045707383. The reversal of 9045707381 is 1837075409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5743366225 + 3302341156 = 75785^2 + 57466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9045707381 is a prime.

It is a super-2 number, since 2×9045707381² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 9045707383, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9045707383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4522853690 + 4522853691.

It is an arithmetic number, because the mean of its divisors is an integer number (4522853691).

Almost surely, 2^9045707381 is an apocalyptic number.

It is an amenable number.

9045707381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9045707381 is an equidigital number, since it uses as much as digits as its factorization.

9045707381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 9045707381 is about 95108.9237716420. The cubic root of 9045707381 is about 2083.5991818240.

The spelling of 9045707381 in words is "nine billion, forty-five million, seven hundred seven thousand, three hundred eighty-one".