164225427 has 4 divisors (see below), whose sum is σ = 218967240. Its totient is φ = 109483616.

The previous prime is 164225407. The next prime is 164225443. The reversal of 164225427 is 724522461.

164225427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164225427 - 2¹² = 164221331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164225407) 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, 27370902 + ... + 27370907.

It is an arithmetic number, because the mean of its divisors is an integer number (54741810).

Almost surely, 2^164225427 is an apocalyptic number.

164225427 is a deficient number, since it is larger than the sum of its proper divisors (54741813).

164225427 is an equidigital number, since it uses as much as digits as its factorization.

164225427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54741812.

The product of its digits is 26880, while the sum is 33.

The square root of 164225427 is about 12815.0468980804. The cubic root of 164225427 is about 547.6210495257.

Adding to 164225427 its reverse (724522461), we get a palindrome (888747888).

The spelling of 164225427 in words is "one hundred sixty-four million, two hundred twenty-five thousand, four hundred twenty-seven".