653212019 has 2 divisors, whose sum is σ = 653212020. Its totient is φ = 653212018.

The previous prime is 653211919. The next prime is 653212031. The reversal of 653212019 is 910212356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 653212019 - 2⁸ = 653211763 is a prime.

It is a super-2 number, since 2×653212019² = 853371883532112722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 653211982 and 653212000.

It is not a weakly prime, because it can be changed into another prime (653212099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326606009 + 326606010.

It is an arithmetic number, because the mean of its divisors is an integer number (326606010).

Almost surely, 2^653212019 is an apocalyptic number.

653212019 is a deficient number, since it is larger than the sum of its proper divisors (1).

653212019 is an equidigital number, since it uses as much as digits as its factorization.

653212019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 653212019 is about 25558.0128139885. The cubic root of 653212019 is about 867.6636211897.

The spelling of 653212019 in words is "six hundred fifty-three million, two hundred twelve thousand, nineteen".