182164121 has 4 divisors (see below), whose sum is σ = 182378532. Its totient is φ = 181949712.

The previous prime is 182164111. The next prime is 182164123. The reversal of 182164121 is 121461281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121461281 = 19 ⋅6392699.

It can be written as a sum of positive squares in 2 ways, for example, as 65286400 + 116877721 = 8080^2 + 10811^2 .

It is a cyclic number.

It is not a de Polignac number, because 182164121 - 2¹⁰ = 182163097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (182164123) 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, 105926 + ... + 107631.

It is an arithmetic number, because the mean of its divisors is an integer number (45594633).

Almost surely, 2^182164121 is an apocalyptic number.

It is an amenable number.

182164121 is a deficient number, since it is larger than the sum of its proper divisors (214411).

182164121 is an equidigital number, since it uses as much as digits as its factorization.

182164121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214410.

The product of its digits is 768, while the sum is 26.

The square root of 182164121 is about 13496.8189215089. The cubic root of 182164121 is about 566.8754043378.

The spelling of 182164121 in words is "one hundred eighty-two million, one hundred sixty-four thousand, one hundred twenty-one".