164315121 has 8 divisors (see below), whose sum is σ = 219444384. Its totient is φ = 109364640.

The previous prime is 164315119. The next prime is 164315143. The reversal of 164315121 is 121513461.

It is a happy number.

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

It is not a de Polignac number, because 164315121 - 2¹ = 164315119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164315091 and 164315100.

It is not an unprimeable number, because it can be changed into a prime (164315321) 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, 42535 + ... + 46236.

It is an arithmetic number, because the mean of its divisors is an integer number (27430548).

Almost surely, 2^164315121 is an apocalyptic number.

It is an amenable number.

164315121 is a deficient number, since it is larger than the sum of its proper divisors (55129263).

164315121 is an equidigital number, since it uses as much as digits as its factorization.

164315121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89391.

The product of its digits is 720, while the sum is 24.

The square root of 164315121 is about 12818.5459783862. The cubic root of 164315121 is about 547.7207283307.

Adding to 164315121 its reverse (121513461), we get a palindrome (285828582).

The spelling of 164315121 in words is "one hundred sixty-four million, three hundred fifteen thousand, one hundred twenty-one".