164260897 has 4 divisors (see below), whose sum is σ = 167045040. Its totient is φ = 161476756.

The previous prime is 164260891. The next prime is 164260907. The reversal of 164260897 is 798062461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164260897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164260891) 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, 1391983 + ... + 1392100.

It is an arithmetic number, because the mean of its divisors is an integer number (41761260).

Almost surely, 2^164260897 is an apocalyptic number.

It is an amenable number.

164260897 is a deficient number, since it is larger than the sum of its proper divisors (2784143).

164260897 is an equidigital number, since it uses as much as digits as its factorization.

164260897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784142.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 164260897 is about 12816.4307433856. The cubic root of 164260897 is about 547.6604724107.

The spelling of 164260897 in words is "one hundred sixty-four million, two hundred sixty thousand, eight hundred ninety-seven".