65001619 has 2 divisors, whose sum is σ = 65001620. Its totient is φ = 65001618.

The previous prime is 65001613. The next prime is 65001689. The reversal of 65001619 is 91610056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65001619 - 2⁷ = 65001491 is a prime.

It is a super-2 number, since 2×65001619² = 8450420945242322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65001613) 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, 32500809 + 32500810.

It is an arithmetic number, because the mean of its divisors is an integer number (32500810).

Almost surely, 2^65001619 is an apocalyptic number.

65001619 is a deficient number, since it is larger than the sum of its proper divisors (1).

65001619 is an equidigital number, since it uses as much as digits as its factorization.

65001619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 65001619 is about 8062.3581537910. The cubic root of 65001619 is about 402.0759140645.

The spelling of 65001619 in words is "sixty-five million, one thousand, six hundred nineteen".