64040101 has 4 divisors (see below), whose sum is σ = 64200204. Its totient is φ = 63880000.

The previous prime is 64040087. The next prime is 64040107. The reversal of 64040101 is 10104046.

It is a happy number.

64040101 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 52548001 + 11492100 = 7249^2 + 3390^2 .

It is a cyclic number.

It is not a de Polignac number, because 64040101 - 2⁹ = 64039589 is a prime.

It is a super-2 number, since 2×64040101² = 8202269072180402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64040107) 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, 79450 + ... + 80251.

It is an arithmetic number, because the mean of its divisors is an integer number (16050051).

Almost surely, 2^64040101 is an apocalyptic number.

It is an amenable number.

64040101 is a deficient number, since it is larger than the sum of its proper divisors (160103).

64040101 is a wasteful number, since it uses less digits than its factorization.

64040101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160102.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 64040101 is about 8002.5059200228. The cubic root of 64040101 is about 400.0835263072.

Adding to 64040101 its reverse (10104046), we get a palindrome (74144147).

The spelling of 64040101 in words is "sixty-four million, forty thousand, one hundred one".