9412494521 has 2 divisors, whose sum is σ = 9412494522. Its totient is φ = 9412494520.

The previous prime is 9412494479. The next prime is 9412494523. The reversal of 9412494521 is 1254942149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6944888896 + 2467605625 = 83336^2 + 49675^2 .

It is an emirp because it is prime and its reverse (1254942149) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9412494521 - 2¹⁸ = 9412232377 is a prime.

Together with 9412494523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9412494523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4706247260 + 4706247261.

It is an arithmetic number, because the mean of its divisors is an integer number (4706247261).

Almost surely, 2^9412494521 is an apocalyptic number.

It is an amenable number.

9412494521 is a deficient number, since it is larger than the sum of its proper divisors (1).

9412494521 is an equidigital number, since it uses as much as digits as its factorization.

9412494521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 9412494521 is about 97018.0113226405. The cubic root of 9412494521 is about 2111.3889555117.

The spelling of 9412494521 in words is "nine billion, four hundred twelve million, four hundred ninety-four thousand, five hundred twenty-one".