164198597 has 8 divisors (see below), whose sum is σ = 174107736. Its totient is φ = 154317312.

The previous prime is 164198591. The next prime is 164198623. The reversal of 164198597 is 795891461.

164198597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 12814²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 105966436 + 58232161 = 10294^2 + 7631^2 .

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 164198597 - 2⁶ = 164198533 is a prime.

It is a super-2 number, since 2×164198597² = 53922358513536818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164198591) 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, 5873 + ... + 19049.

It is an arithmetic number, because the mean of its divisors is an integer number (21763467).

Almost surely, 2^164198597 is an apocalyptic number.

164198597 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

164198597 is a deficient number, since it is larger than the sum of its proper divisors (9909139).

164198597 is a wasteful number, since it uses less digits than its factorization.

164198597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13927.

The product of its digits is 544320, while the sum is 50.

The square root of 164198597 is about 12814.0000390198. Note that the first 4 decimals coincide. The cubic root of 164198597 is about 547.5912257377.

The spelling of 164198597 in words is "one hundred sixty-four million, one hundred ninety-eight thousand, five hundred ninety-seven".