102200279 has 2 divisors, whose sum is σ = 102200280. Its totient is φ = 102200278.

The previous prime is 102200261. The next prime is 102200303. The reversal of 102200279 is 972002201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102200279 - 2²⁰ = 101151703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102200239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51100139 + 51100140.

It is an arithmetic number, because the mean of its divisors is an integer number (51100140).

Almost surely, 2^102200279 is an apocalyptic number.

102200279 is a deficient number, since it is larger than the sum of its proper divisors (1).

102200279 is an equidigital number, since it uses as much as digits as its factorization.

102200279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 102200279 is about 10109.4153639071. The cubic root of 102200279 is about 467.5384798700.

The spelling of 102200279 in words is "one hundred two million, two hundred thousand, two hundred seventy-nine".