164226511 has 4 divisors (see below), whose sum is σ = 173886912. Its totient is φ = 154566112.

The previous prime is 164226497. The next prime is 164226527. The reversal of 164226511 is 115622461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115622461 = 2699 ⋅42839.

It is a cyclic number.

It is not a de Polignac number, because 164226511 - 2¹³ = 164218319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164226511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164226551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4830175 + ... + 4830208.

It is an arithmetic number, because the mean of its divisors is an integer number (43471728).

Almost surely, 2^164226511 is an apocalyptic number.

164226511 is a deficient number, since it is larger than the sum of its proper divisors (9660401).

164226511 is an equidigital number, since it uses as much as digits as its factorization.

164226511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660400.

The product of its digits is 2880, while the sum is 28.

The square root of 164226511 is about 12815.0891920423. The cubic root of 164226511 is about 547.6222544141.

Adding to 164226511 its reverse (115622461), we get a palindrome (279848972).

The spelling of 164226511 in words is "one hundred sixty-four million, two hundred twenty-six thousand, five hundred eleven".