65145583 has 2 divisors, whose sum is σ = 65145584. Its totient is φ = 65145582.

The previous prime is 65145557. The next prime is 65145589. The reversal of 65145583 is 38554156.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65145583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65145589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32572791 + 32572792.

It is an arithmetic number, because the mean of its divisors is an integer number (32572792).

Almost surely, 2^65145583 is an apocalyptic number.

65145583 is a deficient number, since it is larger than the sum of its proper divisors (1).

65145583 is an equidigital number, since it uses as much as digits as its factorization.

65145583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 37.

The square root of 65145583 is about 8071.2813728676. The cubic root of 65145583 is about 402.3725311673.

The spelling of 65145583 in words is "sixty-five million, one hundred forty-five thousand, five hundred eighty-three".