64845061 has 2 divisors, whose sum is σ = 64845062. Its totient is φ = 64845060.

The previous prime is 64845031. The next prime is 64845083. The reversal of 64845061 is 16054846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64496961 + 348100 = 8031^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 64845061 - 2⁷ = 64844933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64845031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32422530 + 32422531.

It is an arithmetic number, because the mean of its divisors is an integer number (32422531).

Almost surely, 2^64845061 is an apocalyptic number.

It is an amenable number.

64845061 is a deficient number, since it is larger than the sum of its proper divisors (1).

64845061 is an equidigital number, since it uses as much as digits as its factorization.

64845061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 64845061 is about 8052.6431064589. The cubic root of 64845061 is about 401.7528513107.

The spelling of 64845061 in words is "sixty-four million, eight hundred forty-five thousand, sixty-one".