64724141 has 2 divisors, whose sum is σ = 64724142. Its totient is φ = 64724140.

The previous prime is 64724129. The next prime is 64724167. The reversal of 64724141 is 14142746.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64722025 + 2116 = 8045^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 64724141 - 2¹⁰ = 64723117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64724641) 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, 32362070 + 32362071.

It is an arithmetic number, because the mean of its divisors is an integer number (32362071).

Almost surely, 2^64724141 is an apocalyptic number.

It is an amenable number.

64724141 is a deficient number, since it is larger than the sum of its proper divisors (1).

64724141 is an equidigital number, since it uses as much as digits as its factorization.

64724141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

The square root of 64724141 is about 8045.1315091799. The cubic root of 64724141 is about 401.5029726929.

Adding to 64724141 its reverse (14142746), we get a palindrome (78866887).

The spelling of 64724141 in words is "sixty-four million, seven hundred twenty-four thousand, one hundred forty-one".