65144041 has 2 divisors, whose sum is σ = 65144042. Its totient is φ = 65144040.

The previous prime is 65144003. The next prime is 65144047. The reversal of 65144041 is 14044156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45968400 + 19175641 = 6780^2 + 4379^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65144041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65143997 and 65144015.

It is not a weakly prime, because it can be changed into another prime (65144047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32572020 + 32572021.

It is an arithmetic number, because the mean of its divisors is an integer number (32572021).

Almost surely, 2^65144041 is an apocalyptic number.

It is an amenable number.

65144041 is a deficient number, since it is larger than the sum of its proper divisors (1).

65144041 is an equidigital number, since it uses as much as digits as its factorization.

65144041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 65144041 is about 8071.1858484364. The cubic root of 65144041 is about 402.3693564146.

Adding to 65144041 its reverse (14044156), we get a palindrome (79188197).

The spelling of 65144041 in words is "sixty-five million, one hundred forty-four thousand, forty-one".