70812019 has 2 divisors, whose sum is σ = 70812020. Its totient is φ = 70812018.

The previous prime is 70812011. The next prime is 70812023. The reversal of 70812019 is 91021807.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70812019 - 2³ = 70812011 is a prime.

It is a super-2 number, since 2×70812019² = 10028684069712722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70812011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35406009 + 35406010.

It is an arithmetic number, because the mean of its divisors is an integer number (35406010).

Almost surely, 2^70812019 is an apocalyptic number.

70812019 is a deficient number, since it is larger than the sum of its proper divisors (1).

70812019 is an equidigital number, since it uses as much as digits as its factorization.

70812019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 70812019 is about 8414.9877599436. The cubic root of 70812019 is about 413.7160082576.

The spelling of 70812019 in words is "seventy million, eight hundred twelve thousand, nineteen".