70198019 has 2 divisors, whose sum is σ = 70198020. Its totient is φ = 70198018.

The previous prime is 70197983. The next prime is 70198021. The reversal of 70198019 is 91089107.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70198019 - 2¹⁶ = 70132483 is a prime.

It is a super-2 number, since 2×70198019² = 9855523743048722, which contains 22 as substring.

Together with 70198021, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70198019.

It is not a weakly prime, because it can be changed into another prime (70198319) 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, 35099009 + 35099010.

It is an arithmetic number, because the mean of its divisors is an integer number (35099010).

Almost surely, 2^70198019 is an apocalyptic number.

70198019 is a deficient number, since it is larger than the sum of its proper divisors (1).

70198019 is an equidigital number, since it uses as much as digits as its factorization.

70198019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 70198019 is about 8378.4258067969. The cubic root of 70198019 is about 412.5167797276.

The spelling of 70198019 in words is "seventy million, one hundred ninety-eight thousand, nineteen".