164359193 has 4 divisors (see below), whose sum is σ = 167053668. Its totient is φ = 161664720.

The previous prime is 164359189. The next prime is 164359207. The reversal of 164359193 is 391953461.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9406489 + 154952704 = 3067^2 + 12448^2 .

It is a cyclic number.

It is not a de Polignac number, because 164359193 - 2² = 164359189 is a prime.

It is a super-2 number, since 2×164359193² = 54027888647222498, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 164359193.

It is not an unprimeable number, because it can be changed into a prime (164359103) 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, 1347146 + ... + 1347267.

It is an arithmetic number, because the mean of its divisors is an integer number (41763417).

Almost surely, 2^164359193 is an apocalyptic number.

It is an amenable number.

164359193 is a deficient number, since it is larger than the sum of its proper divisors (2694475).

164359193 is an equidigital number, since it uses as much as digits as its factorization.

164359193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694474.

The product of its digits is 87480, while the sum is 41.

The square root of 164359193 is about 12820.2649348600. The cubic root of 164359193 is about 547.7696931692.

The spelling of 164359193 in words is "one hundred sixty-four million, three hundred fifty-nine thousand, one hundred ninety-three".