64145801 has 2 divisors, whose sum is σ = 64145802. Its totient is φ = 64145800.

The previous prime is 64145797. The next prime is 64145813. The reversal of 64145801 is 10854146.

64145801 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., 55115776 + 9030025 = 7424^2 + 3005^2 .

It is a cyclic number.

It is not a de Polignac number, because 64145801 - 2² = 64145797 is a prime.

It is a super-2 number, since 2×64145801² = 8229367571863202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64145821) 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, 32072900 + 32072901.

It is an arithmetic number, because the mean of its divisors is an integer number (32072901).

Almost surely, 2^64145801 is an apocalyptic number.

It is an amenable number.

64145801 is a deficient number, since it is larger than the sum of its proper divisors (1).

64145801 is an equidigital number, since it uses as much as digits as its factorization.

64145801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 64145801 is about 8009.1073784786. The cubic root of 64145801 is about 400.3035217115.

Adding to 64145801 its reverse (10854146), we get a palindrome (74999947).

It can be divided in two parts, 64145 and 801, that added together give a palindrome (64946).

The spelling of 64145801 in words is "sixty-four million, one hundred forty-five thousand, eight hundred one".