65144983 has 2 divisors, whose sum is σ = 65144984. Its totient is φ = 65144982.

The previous prime is 65144953. The next prime is 65145001. The reversal of 65144983 is 38944156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65144983 - 2¹³ = 65136791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65144903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32572491 + 32572492.

It is an arithmetic number, because the mean of its divisors is an integer number (32572492).

Almost surely, 2^65144983 is an apocalyptic number.

65144983 is a deficient number, since it is larger than the sum of its proper divisors (1).

65144983 is an equidigital number, since it uses as much as digits as its factorization.

65144983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 65144983 is about 8071.2442039626. The cubic root of 65144983 is about 402.3712958609.

The spelling of 65144983 in words is "sixty-five million, one hundred forty-four thousand, nine hundred eighty-three".