164455297 has 4 divisors (see below), whose sum is σ = 174129156. Its totient is φ = 154781440.

The previous prime is 164455283. The next prime is 164455307. The reversal of 164455297 is 792554461.

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 141039376 + 23415921 = 11876^2 + 4839^2 .

It is a cyclic number.

It is not a de Polignac number, because 164455297 - 2¹¹ = 164453249 is a prime.

It is a super-2 number, since 2×164455297² = 54091089422716418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164455997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4836904 + ... + 4836937.

It is an arithmetic number, because the mean of its divisors is an integer number (43532289).

Almost surely, 2^164455297 is an apocalyptic number.

164455297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

164455297 is a deficient number, since it is larger than the sum of its proper divisors (9673859).

164455297 is an equidigital number, since it uses as much as digits as its factorization.

164455297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9673858.

The product of its digits is 302400, while the sum is 43.

The square root of 164455297 is about 12824.0125155897. The cubic root of 164455297 is about 547.8764362127.

The spelling of 164455297 in words is "one hundred sixty-four million, four hundred fifty-five thousand, two hundred ninety-seven".