164971379 has 4 divisors (see below), whose sum is σ = 166825080. Its totient is φ = 163117680.

The previous prime is 164971369. The next prime is 164971397. The reversal of 164971379 is 973179461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164971379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164971309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926717 + ... + 926894.

It is an arithmetic number, because the mean of its divisors is an integer number (41706270).

Almost surely, 2^164971379 is an apocalyptic number.

164971379 is a deficient number, since it is larger than the sum of its proper divisors (1853701).

164971379 is an equidigital number, since it uses as much as digits as its factorization.

164971379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853700.

The product of its digits is 285768, while the sum is 47.

The square root of 164971379 is about 12844.1184594350. The cubic root of 164971379 is about 548.4489401471.

The spelling of 164971379 in words is "one hundred sixty-four million, nine hundred seventy-one thousand, three hundred seventy-nine".