74218219 has 2 divisors, whose sum is σ = 74218220. Its totient is φ = 74218218.

The previous prime is 74218201. The next prime is 74218253. The reversal of 74218219 is 91281247.

It is an a-pointer prime, because the next prime (74218253) can be obtained adding 74218219 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (91281247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74218219 - 2¹³ = 74210027 is a prime.

It is a super-2 number, since 2×74218219² = 11016688063063922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74212219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37109109 + 37109110.

It is an arithmetic number, because the mean of its divisors is an integer number (37109110).

Almost surely, 2^74218219 is an apocalyptic number.

74218219 is a deficient number, since it is larger than the sum of its proper divisors (1).

74218219 is an equidigital number, since it uses as much as digits as its factorization.

74218219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 34.

The square root of 74218219 is about 8614.9996517702. Note that the first 3 decimals coincide. The cubic root of 74218219 is about 420.2459236249.

The spelling of 74218219 in words is "seventy-four million, two hundred eighteen thousand, two hundred nineteen".