164043413 has 4 divisors (see below), whose sum is σ = 169335168. Its totient is φ = 158751660.

The previous prime is 164043391. The next prime is 164043449. The reversal of 164043413 is 314340461.

164043413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 314340461 = 349 ⋅900689.

It is a cyclic number.

It is not a de Polignac number, because 164043413 - 2²⁰ = 162994837 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 (164013413) 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, 2645831 + ... + 2645892.

It is an arithmetic number, because the mean of its divisors is an integer number (42333792).

Almost surely, 2^164043413 is an apocalyptic number.

It is an amenable number.

164043413 is a deficient number, since it is larger than the sum of its proper divisors (5291755).

164043413 is an equidigital number, since it uses as much as digits as its factorization.

164043413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291754.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 164043413 is about 12807.9433555899. The cubic root of 164043413 is about 547.4186619784.

Adding to 164043413 its reverse (314340461), we get a palindrome (478383874).

The spelling of 164043413 in words is "one hundred sixty-four million, forty-three thousand, four hundred thirteen".