64288031 has 2 divisors, whose sum is σ = 64288032. Its totient is φ = 64288030.

The previous prime is 64287997. The next prime is 64288043. The reversal of 64288031 is 13088246.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64288031 is a prime.

It is a super-2 number, since 2×64288031² = 8265901859713922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64288531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32144015 + 32144016.

It is an arithmetic number, because the mean of its divisors is an integer number (32144016).

Almost surely, 2^64288031 is an apocalyptic number.

64288031 is a deficient number, since it is larger than the sum of its proper divisors (1).

64288031 is an equidigital number, since it uses as much as digits as its factorization.

64288031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 64288031 is about 8017.9817285898. The cubic root of 64288031 is about 400.5991666336.

The spelling of 64288031 in words is "sixty-four million, two hundred eighty-eight thousand, thirty-one".