76318513 has 2 divisors, whose sum is σ = 76318514. Its totient is φ = 76318512.

The previous prime is 76318493. The next prime is 76318523. The reversal of 76318513 is 31581367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63808144 + 12510369 = 7988^2 + 3537^2 .

It is an emirp because it is prime and its reverse (31581367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76318513 - 2²¹ = 74221361 is a prime.

It is a super-3 number, since 3×76318513³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (76318523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38159256 + 38159257.

It is an arithmetic number, because the mean of its divisors is an integer number (38159257).

Almost surely, 2^76318513 is an apocalyptic number.

It is an amenable number.

76318513 is a deficient number, since it is larger than the sum of its proper divisors (1).

76318513 is an equidigital number, since it uses as much as digits as its factorization.

76318513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 76318513 is about 8736.0467604060. The cubic root of 76318513 is about 424.1732726745.

The spelling of 76318513 in words is "seventy-six million, three hundred eighteen thousand, five hundred thirteen".