612270019 has 2 divisors, whose sum is σ = 612270020. Its totient is φ = 612270018.

The previous prime is 612270017. The next prime is 612270059. The reversal of 612270019 is 910072216.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612270019 - 2¹ = 612270017 is a prime.

It is a super-2 number, since 2×612270019² = 749749152332520722, which contains 22 as substring.

Together with 612270017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (612270017) 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, 306135009 + 306135010.

It is an arithmetic number, because the mean of its divisors is an integer number (306135010).

Almost surely, 2^612270019 is an apocalyptic number.

612270019 is a deficient number, since it is larger than the sum of its proper divisors (1).

612270019 is an equidigital number, since it uses as much as digits as its factorization.

612270019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 612270019 is about 24744.0905874514. The cubic root of 612270019 is about 849.1433209626.

The spelling of 612270019 in words is "six hundred twelve million, two hundred seventy thousand, nineteen".