80513747 has 2 divisors, whose sum is σ = 80513748. Its totient is φ = 80513746.

The previous prime is 80513677. The next prime is 80513749. The reversal of 80513747 is 74731508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80513747 - 2¹⁸ = 80251603 is a prime.

Together with 80513749, 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 (80513749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40256873 + 40256874.

It is an arithmetic number, because the mean of its divisors is an integer number (40256874).

Almost surely, 2^80513747 is an apocalyptic number.

80513747 is a deficient number, since it is larger than the sum of its proper divisors (1).

80513747 is an equidigital number, since it uses as much as digits as its factorization.

80513747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 80513747 is about 8972.9452801185. The cubic root of 80513747 is about 431.8073325665.

The spelling of 80513747 in words is "eighty million, five hundred thirteen thousand, seven hundred forty-seven".