164013797 has 4 divisors (see below), whose sum is σ = 165211116. Its totient is φ = 162816480.

The previous prime is 164013791. The next prime is 164013809. The reversal of 164013797 is 797310461.

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 70040161 + 93973636 = 8369^2 + 9694^2 .

It is a cyclic number.

It is not a de Polignac number, because 164013797 - 2⁴ = 164013781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164013797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164013791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598454 + ... + 598727.

It is an arithmetic number, because the mean of its divisors is an integer number (41302779).

Almost surely, 2^164013797 is an apocalyptic number.

It is an amenable number.

164013797 is a deficient number, since it is larger than the sum of its proper divisors (1197319).

164013797 is a wasteful number, since it uses less digits than its factorization.

164013797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197318.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 164013797 is about 12806.7871458848. The cubic root of 164013797 is about 547.3857167831.

The spelling of 164013797 in words is "one hundred sixty-four million, thirteen thousand, seven hundred ninety-seven".