210172140379 has 2 divisors, whose sum is σ = 210172140380. Its totient is φ = 210172140378.

The previous prime is 210172140313. The next prime is 210172140383. The reversal of 210172140379 is 973041271012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210172140379 - 2¹⁵ = 210172107611 is a prime.

It is not a weakly prime, because it can be changed into another prime (210172140389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105086070189 + 105086070190.

It is an arithmetic number, because the mean of its divisors is an integer number (105086070190).

Almost surely, 2^210172140379 is an apocalyptic number.

210172140379 is a deficient number, since it is larger than the sum of its proper divisors (1).

210172140379 is an equidigital number, since it uses as much as digits as its factorization.

210172140379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 210172140379 in words is "two hundred ten billion, one hundred seventy-two million, one hundred forty thousand, three hundred seventy-nine".