64115801 has 4 divisors (see below), whose sum is σ = 64154532. Its totient is φ = 64077072.

The previous prime is 64115797. The next prime is 64115803. The reversal of 64115801 is 10851146.

64115801 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, and also an emirpimes, since its reverse is a distinct semiprime: 10851146 = 2 ⋅5425573.

It can be written as a sum of positive squares in 2 ways, for example, as 38875225 + 25240576 = 6235^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 64115801 - 2² = 64115797 is a prime.

It is a super-2 number, since 2×64115801² = 8221671875743202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64115803) 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, 16766 + ... + 20231.

It is an arithmetic number, because the mean of its divisors is an integer number (16038633).

Almost surely, 2^64115801 is an apocalyptic number.

It is an amenable number.

64115801 is a deficient number, since it is larger than the sum of its proper divisors (38731).

64115801 is a wasteful number, since it uses less digits than its factorization.

64115801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38730.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 64115801 is about 8007.2342915641. The cubic root of 64115801 is about 400.2411067230.

Adding to 64115801 its reverse (10851146), we get a palindrome (74966947).

The spelling of 64115801 in words is "sixty-four million, one hundred fifteen thousand, eight hundred one".