64108243 has 4 divisors (see below), whose sum is σ = 65011248. Its totient is φ = 63205240.

The previous prime is 64108237. The next prime is 64108259. The reversal of 64108243 is 34280146.

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

It is a cyclic number.

It is not a de Polignac number, because 64108243 - 2⁵ = 64108211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64108283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451396 + ... + 451537.

It is an arithmetic number, because the mean of its divisors is an integer number (16252812).

Almost surely, 2^64108243 is an apocalyptic number.

64108243 is a deficient number, since it is larger than the sum of its proper divisors (903005).

64108243 is an equidigital number, since it uses as much as digits as its factorization.

64108243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903004.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 64108243 is about 8006.7623294313. The cubic root of 64108243 is about 400.2253792366.

Adding to 64108243 its reverse (34280146), we get a palindrome (98388389).

The spelling of 64108243 in words is "sixty-four million, one hundred eight thousand, two hundred forty-three".