654465619 has 2 divisors, whose sum is σ = 654465620. Its totient is φ = 654465618.

The previous prime is 654465613. The next prime is 654465653. The reversal of 654465619 is 916564456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654465619 - 2²³ = 646077011 is a prime.

It is a super-2 number, since 2×654465619² = 856650492906106322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (654465613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327232809 + 327232810.

It is an arithmetic number, because the mean of its divisors is an integer number (327232810).

Almost surely, 2^654465619 is an apocalyptic number.

654465619 is a deficient number, since it is larger than the sum of its proper divisors (1).

654465619 is an equidigital number, since it uses as much as digits as its factorization.

654465619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 46.

The square root of 654465619 is about 25582.5256571747. The cubic root of 654465619 is about 868.2183201285.

The spelling of 654465619 in words is "six hundred fifty-four million, four hundred sixty-five thousand, six hundred nineteen".