64303109 has 4 divisors (see below), whose sum is σ = 69249516. Its totient is φ = 59356704.

The previous prime is 64303091. The next prime is 64303111. The reversal of 64303109 is 90130346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90130346 = 2 ⋅45065173.

It can be written as a sum of positive squares in 2 ways, for example, as 23980609 + 40322500 = 4897^2 + 6350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64303109 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 (64303139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2473184 + ... + 2473209.

It is an arithmetic number, because the mean of its divisors is an integer number (17312379).

Almost surely, 2^64303109 is an apocalyptic number.

It is an amenable number.

64303109 is a deficient number, since it is larger than the sum of its proper divisors (4946407).

64303109 is a wasteful number, since it uses less digits than its factorization.

64303109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946406.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 64303109 is about 8018.9219350234. The cubic root of 64303109 is about 400.6304827898.

The spelling of 64303109 in words is "sixty-four million, three hundred three thousand, one hundred nine".