101279 has 2 divisors, whose sum is σ = 101280. Its totient is φ = 101278.

The previous prime is 101273. The next prime is 101281. The reversal of 101279 is 972101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101279 is a prime.

Together with 101281, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50639 + 50640.

It is an arithmetic number, because the mean of its divisors is an integer number (50640).

2¹⁰¹²⁷⁹ is an apocalyptic number.

101279 is a deficient number, since it is larger than the sum of its proper divisors (1).

101279 is an equidigital number, since it uses as much as digits as its factorization.

101279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 101279 is about 318.2436173751. The cubic root of 101279 is about 46.6129370284.

The spelling of 101279 in words is "one hundred one thousand, two hundred seventy-nine".