164354321 has 2 divisors, whose sum is σ = 164354322. Its totient is φ = 164354320.

The previous prime is 164354291. The next prime is 164354387. The reversal of 164354321 is 123453461.

164354321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152794321 + 11560000 = 12361^2 + 3400^2 .

It is an emirp because it is prime and its reverse (123453461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164354321 - 2¹⁴ = 164337937 is a prime.

It is not a weakly prime, because it can be changed into another prime (164354621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82177160 + 82177161.

It is an arithmetic number, because the mean of its divisors is an integer number (82177161).

Almost surely, 2^164354321 is an apocalyptic number.

It is an amenable number.

164354321 is a deficient number, since it is larger than the sum of its proper divisors (1).

164354321 is an equidigital number, since it uses as much as digits as its factorization.

164354321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 164354321 is about 12820.0749217780. The cubic root of 164354321 is about 547.7642807140.

The spelling of 164354321 in words is "one hundred sixty-four million, three hundred fifty-four thousand, three hundred twenty-one".