76545013 has 2 divisors, whose sum is σ = 76545014. Its totient is φ = 76545012.

The previous prime is 76544987. The next prime is 76545017. The reversal of 76545013 is 31054567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57123364 + 19421649 = 7558^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 76545013 - 2⁵ = 76544981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76545017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38272506 + 38272507.

It is an arithmetic number, because the mean of its divisors is an integer number (38272507).

Almost surely, 2^76545013 is an apocalyptic number.

It is an amenable number.

76545013 is a deficient number, since it is larger than the sum of its proper divisors (1).

76545013 is an equidigital number, since it uses as much as digits as its factorization.

76545013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 76545013 is about 8749.0006857926. Note that the first 3 decimals coincide. The cubic root of 76545013 is about 424.5924822653.

The spelling of 76545013 in words is "seventy-six million, five hundred forty-five thousand, thirteen".