64109233 has 2 divisors, whose sum is σ = 64109234. Its totient is φ = 64109232.

The previous prime is 64109207. The next prime is 64109239. The reversal of 64109233 is 33290146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63872064 + 237169 = 7992^2 + 487^2 .

It is a cyclic number.

It is not a de Polignac number, because 64109233 - 2²⁵ = 30554801 is a prime.

It is not a weakly prime, because it can be changed into another prime (64109239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32054616 + 32054617.

It is an arithmetic number, because the mean of its divisors is an integer number (32054617).

Almost surely, 2^64109233 is an apocalyptic number.

It is an amenable number.

64109233 is a deficient number, since it is larger than the sum of its proper divisors (1).

64109233 is an equidigital number, since it uses as much as digits as its factorization.

64109233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 64109233 is about 8006.8241519344. The cubic root of 64109233 is about 400.2274394038.

Adding to 64109233 its reverse (33290146), we get a palindrome (97399379).

The spelling of 64109233 in words is "sixty-four million, one hundred nine thousand, two hundred thirty-three".