64136801 has 4 divisors (see below), whose sum is σ = 67909572. Its totient is φ = 60364032.

The previous prime is 64136791. The next prime is 64136819. The reversal of 64136801 is 10863146.

64136801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36300625 + 27836176 = 6025^2 + 5276^2 .

It is a cyclic number.

It is not a de Polignac number, because 64136801 - 2²² = 59942497 is a prime.

It is a super-2 number, since 2×64136801² = 8227058485027202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64136881) 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 in 3 ways as a sum of consecutive naturals, for example, 1886360 + ... + 1886393.

It is an arithmetic number, because the mean of its divisors is an integer number (16977393).

Almost surely, 2^64136801 is an apocalyptic number.

It is an amenable number.

64136801 is a deficient number, since it is larger than the sum of its proper divisors (3772771).

64136801 is a wasteful number, since it uses less digits than its factorization.

64136801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772770.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 64136801 is about 8008.5454984036. The cubic root of 64136801 is about 400.2847992587.

Adding to 64136801 its reverse (10863146), we get a palindrome (74999947).

The spelling of 64136801 in words is "sixty-four million, one hundred thirty-six thousand, eight hundred one".