392120219 has 2 divisors, whose sum is σ = 392120220. Its totient is φ = 392120218.

The previous prime is 392120177. The next prime is 392120221. The reversal of 392120219 is 912021293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 392120219 - 2⁸ = 392119963 is a prime.

It is a super-2 number, since 2×392120219² = 307516532297215922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 392120221, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 392120191 and 392120200.

It is not a weakly prime, because it can be changed into another prime (392120299) 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, 196060109 + 196060110.

It is an arithmetic number, because the mean of its divisors is an integer number (196060110).

Almost surely, 2^392120219 is an apocalyptic number.

392120219 is a deficient number, since it is larger than the sum of its proper divisors (1).

392120219 is an equidigital number, since it uses as much as digits as its factorization.

392120219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 392120219 is about 19802.0256287078. The cubic root of 392120219 is about 731.9359503565.

The spelling of 392120219 in words is "three hundred ninety-two million, one hundred twenty thousand, two hundred nineteen".