64512737 has 2 divisors, whose sum is σ = 64512738. Its totient is φ = 64512736.

The previous prime is 64512731. The next prime is 64512821. The reversal of 64512737 is 73721546.

64512737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38390416 + 26122321 = 6196^2 + 5111^2 .

It is a cyclic number.

It is not a de Polignac number, because 64512737 - 2¹⁴ = 64496353 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64512697 and 64512706.

It is not a weakly prime, because it can be changed into another prime (64512731) 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, 32256368 + 32256369.

It is an arithmetic number, because the mean of its divisors is an integer number (32256369).

Almost surely, 2^64512737 is an apocalyptic number.

It is an amenable number.

64512737 is a deficient number, since it is larger than the sum of its proper divisors (1).

64512737 is an equidigital number, since it uses as much as digits as its factorization.

64512737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 64512737 is about 8031.9821339443. The cubic root of 64512737 is about 401.0653620733.

The spelling of 64512737 in words is "sixty-four million, five hundred twelve thousand, seven hundred thirty-seven".