164354473 has 2 divisors, whose sum is σ = 164354474. Its totient is φ = 164354472.

The previous prime is 164354459. The next prime is 164354479. The reversal of 164354473 is 374453461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128210329 + 36144144 = 11323^2 + 6012^2 .

It is a cyclic number.

It is not a de Polignac number, because 164354473 - 2¹⁷ = 164223401 is a prime.

It is a super-3 number, since 3×164354473³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (164354479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82177236 + 82177237.

It is an arithmetic number, because the mean of its divisors is an integer number (82177237).

Almost surely, 2^164354473 is an apocalyptic number.

It is an amenable number.

164354473 is a deficient number, since it is larger than the sum of its proper divisors (1).

164354473 is an equidigital number, since it uses as much as digits as its factorization.

164354473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 37.

The square root of 164354473 is about 12820.0808499791. The cubic root of 164354473 is about 547.7644495771.

The spelling of 164354473 in words is "one hundred sixty-four million, three hundred fifty-four thousand, four hundred seventy-three".