102077219 has 2 divisors, whose sum is σ = 102077220. Its totient is φ = 102077218.

The previous prime is 102077201. The next prime is 102077221. The reversal of 102077219 is 912770201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102077219 is a prime.

It is a super-2 number, since 2×102077219² = 20839517277547922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 102077221, 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 = 102077191 and 102077200.

It is not a weakly prime, because it can be changed into another prime (102077119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51038609 + 51038610.

It is an arithmetic number, because the mean of its divisors is an integer number (51038610).

Almost surely, 2^102077219 is an apocalyptic number.

102077219 is a deficient number, since it is larger than the sum of its proper divisors (1).

102077219 is an equidigital number, since it uses as much as digits as its factorization.

102077219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 102077219 is about 10103.3271252593. The cubic root of 102077219 is about 467.3507491572.

The spelling of 102077219 in words is "one hundred two million, seventy-seven thousand, two hundred nineteen".