164870497 has 8 divisors (see below), whose sum is σ = 179997120. Its totient is φ = 149766960.

The previous prime is 164870491. The next prime is 164870533. The reversal of 164870497 is 794078461.

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

It is a cyclic number.

It is not a de Polignac number, because 164870497 - 2¹⁹ = 164346209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164870491) 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, 11404 + ... + 21442.

It is an arithmetic number, because the mean of its divisors is an integer number (22499640).

Almost surely, 2^164870497 is an apocalyptic number.

It is an amenable number.

164870497 is a deficient number, since it is larger than the sum of its proper divisors (15126623).

164870497 is a wasteful number, since it uses less digits than its factorization.

164870497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 164870497 is about 12840.1906917304. The cubic root of 164870497 is about 548.3371229576.

The spelling of 164870497 in words is "one hundred sixty-four million, eight hundred seventy thousand, four hundred ninety-seven".