164432319 has 4 divisors (see below), whose sum is σ = 219243096. Its totient is φ = 109621544.

The previous prime is 164432299. The next prime is 164432353. The reversal of 164432319 is 913234461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913234461 = 3 ⋅304411487.

It is a cyclic number.

It is not a de Polignac number, because 164432319 - 2⁵ = 164432287 is a prime.

It is a super-3 number, since 3×164432319³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 164432319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164432399) 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, 27405384 + ... + 27405389.

It is an arithmetic number, because the mean of its divisors is an integer number (54810774).

Almost surely, 2^164432319 is an apocalyptic number.

164432319 is a deficient number, since it is larger than the sum of its proper divisors (54810777).

164432319 is an equidigital number, since it uses as much as digits as its factorization.

164432319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54810776.

The product of its digits is 15552, while the sum is 33.

The square root of 164432319 is about 12823.1165868520. The cubic root of 164432319 is about 547.8509182526.

The spelling of 164432319 in words is "one hundred sixty-four million, four hundred thirty-two thousand, three hundred nineteen".