64431101 has 8 divisors (see below), whose sum is σ = 73700544. Its totient is φ = 55177920.

The previous prime is 64431083. The next prime is 64431121. The reversal of 64431101 is 10113446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64431101 - 2¹⁰ = 64430077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64431121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6146 + ... + 12908.

It is an arithmetic number, because the mean of its divisors is an integer number (9212568).

Almost surely, 2^64431101 is an apocalyptic number.

It is an amenable number.

64431101 is a deficient number, since it is larger than the sum of its proper divisors (9269443).

64431101 is a wasteful number, since it uses less digits than its factorization.

64431101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8131.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 64431101 is about 8026.8985916106. The cubic root of 64431101 is about 400.8961180154.

Adding to 64431101 its reverse (10113446), we get a palindrome (74544547).

The spelling of 64431101 in words is "sixty-four million, four hundred thirty-one thousand, one hundred one".