64144651 has 2 divisors, whose sum is σ = 64144652. Its totient is φ = 64144650.

The previous prime is 64144583. The next prime is 64144669. The reversal of 64144651 is 15644146.

64144651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64144651 - 2⁷ = 64144523 is a prime.

It is a super-2 number, since 2×64144651² = 8229072503823602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61144651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32072325 + 32072326.

It is an arithmetic number, because the mean of its divisors is an integer number (32072326).

Almost surely, 2^64144651 is an apocalyptic number.

64144651 is a deficient number, since it is larger than the sum of its proper divisors (1).

64144651 is an equidigital number, since it uses as much as digits as its factorization.

64144651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 64144651 is about 8009.0355848879. The cubic root of 64144651 is about 400.3011294957.

Adding to 64144651 its reverse (15644146), we get a palindrome (79788797).

The spelling of 64144651 in words is "sixty-four million, one hundred forty-four thousand, six hundred fifty-one".