164178897 has 8 divisors (see below), whose sum is σ = 221542944. Its totient is φ = 108133728.

The previous prime is 164178881. The next prime is 164178907. The reversal of 164178897 is 798871461.

164178897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164178897 - 2⁴ = 164178881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164178397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329428 + ... + 329925.

It is an arithmetic number, because the mean of its divisors is an integer number (27692868).

Almost surely, 2^164178897 is an apocalyptic number.

It is an amenable number.

164178897 is a deficient number, since it is larger than the sum of its proper divisors (57364047).

164178897 is an equidigital number, since it uses as much as digits as its factorization.

164178897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659439.

The product of its digits is 677376, while the sum is 51.

The square root of 164178897 is about 12813.2313254698. The cubic root of 164178897 is about 547.5693254723.

The spelling of 164178897 in words is "one hundred sixty-four million, one hundred seventy-eight thousand, eight hundred ninety-seven".