214156819 has 2 divisors, whose sum is σ = 214156820. Its totient is φ = 214156818.

The previous prime is 214156801. The next prime is 214156823. The reversal of 214156819 is 918651412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214156819 - 2¹⁵ = 214124051 is a prime.

It is a super-2 number, since 2×214156819² = 91726286248397522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (214156889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107078409 + 107078410.

It is an arithmetic number, because the mean of its divisors is an integer number (107078410).

Almost surely, 2^214156819 is an apocalyptic number.

214156819 is a deficient number, since it is larger than the sum of its proper divisors (1).

214156819 is an equidigital number, since it uses as much as digits as its factorization.

214156819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 37.

The square root of 214156819 is about 14634.0978198179. The cubic root of 214156819 is about 598.2884733624.

The spelling of 214156819 in words is "two hundred fourteen million, one hundred fifty-six thousand, eight hundred nineteen".