164320373 has 6 divisors (see below), whose sum is σ = 191148246. Its totient is φ = 140845992.

The previous prime is 164320357. The next prime is 164320391. The reversal of 164320373 is 373023461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 108638929 + 55681444 = 10423^2 + 7462^2 .

It is not a de Polignac number, because 164320373 - 2⁴ = 164320357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164320313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1676690 + ... + 1676787.

It is an arithmetic number, because the mean of its divisors is an integer number (31858041).

Almost surely, 2^164320373 is an apocalyptic number.

It is an amenable number.

164320373 is a deficient number, since it is larger than the sum of its proper divisors (26827873).

164320373 is an equidigital number, since it uses as much as digits as its factorization.

164320373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353491 (or 3353484 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 164320373 is about 12818.7508361774. The cubic root of 164320373 is about 547.7265638630.

The spelling of 164320373 in words is "one hundred sixty-four million, three hundred twenty thousand, three hundred seventy-three".