64507141 has 2 divisors, whose sum is σ = 64507142. Its totient is φ = 64507140.

The previous prime is 64507139. The next prime is 64507153. The reversal of 64507141 is 14170546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49646116 + 14861025 = 7046^2 + 3855^2 .

It is a cyclic number.

It is not a de Polignac number, because 64507141 - 2¹ = 64507139 is a prime.

It is a super-2 number, since 2×64507141² = 8322342479987762, which contains 22 as substring.

Together with 64507139, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64507241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32253570 + 32253571.

It is an arithmetic number, because the mean of its divisors is an integer number (32253571).

Almost surely, 2^64507141 is an apocalyptic number.

It is an amenable number.

64507141 is a deficient number, since it is larger than the sum of its proper divisors (1).

64507141 is an equidigital number, since it uses as much as digits as its factorization.

64507141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 64507141 is about 8031.6337690410. The cubic root of 64507141 is about 401.0537652592.

Adding to 64507141 its reverse (14170546), we get a palindrome (78677687).

The spelling of 64507141 in words is "sixty-four million, five hundred seven thousand, one hundred forty-one".