210135379 has 2 divisors, whose sum is σ = 210135380. Its totient is φ = 210135378.

The previous prime is 210135377. The next prime is 210135427. The reversal of 210135379 is 973531012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210135379 - 2¹ = 210135377 is a prime.

Together with 210135377, 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 210135379.

It is not a weakly prime, because it can be changed into another prime (210135377) 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, 105067689 + 105067690.

It is an arithmetic number, because the mean of its divisors is an integer number (105067690).

Almost surely, 2^210135379 is an apocalyptic number.

210135379 is a deficient number, since it is larger than the sum of its proper divisors (1).

210135379 is an equidigital number, since it uses as much as digits as its factorization.

210135379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 210135379 is about 14496.0470128929. The cubic root of 210135379 is about 594.5198951741.

The spelling of 210135379 in words is "two hundred ten million, one hundred thirty-five thousand, three hundred seventy-nine".