164295121 has 4 divisors (see below), whose sum is σ = 169960500. Its totient is φ = 158629744.

The previous prime is 164295119. The next prime is 164295137. The reversal of 164295121 is 121592461.

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 47114496 + 117180625 = 6864^2 + 10825^2 .

It is a cyclic number.

It is not a de Polignac number, because 164295121 - 2¹ = 164295119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164295151) 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, 2832646 + ... + 2832703.

It is an arithmetic number, because the mean of its divisors is an integer number (42490125).

Almost surely, 2^164295121 is an apocalyptic number.

It is an amenable number.

164295121 is a deficient number, since it is larger than the sum of its proper divisors (5665379).

164295121 is an equidigital number, since it uses as much as digits as its factorization.

164295121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665378.

The product of its digits is 4320, while the sum is 31.

The square root of 164295121 is about 12817.7658349652. The cubic root of 164295121 is about 547.6985050583.

The spelling of 164295121 in words is "one hundred sixty-four million, two hundred ninety-five thousand, one hundred twenty-one".