164570227 has 4 divisors (see below), whose sum is σ = 169878976. Its totient is φ = 159261480.

The previous prime is 164570213. The next prime is 164570239. The reversal of 164570227 is 722075461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722075461 = 37 ⋅19515553.

It is a cyclic number.

It is not a de Polignac number, because 164570227 - 2¹⁹ = 164045939 is a prime.

It is a super-2 number, since 2×164570227² = 54166719229663058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164570192 and 164570201.

It is not an unprimeable number, because it can be changed into a prime (164570257) 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, 2654328 + ... + 2654389.

It is an arithmetic number, because the mean of its divisors is an integer number (42469744).

Almost surely, 2^164570227 is an apocalyptic number.

164570227 is a deficient number, since it is larger than the sum of its proper divisors (5308749).

164570227 is an equidigital number, since it uses as much as digits as its factorization.

164570227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308748.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 164570227 is about 12828.4927797462. The cubic root of 164570227 is about 548.0040347706.

The spelling of 164570227 in words is "one hundred sixty-four million, five hundred seventy thousand, two hundred twenty-seven".