164223213 has 128 divisors (see below), whose sum is σ = 318504960. Its totient is φ = 72576000.

The previous prime is 164223193. The next prime is 164223253. The reversal of 164223213 is 312322461.

It is not a de Polignac number, because 164223213 - 2¹³ = 164215021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164223253) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2312968 + ... + 2313038.

It is an arithmetic number, because the mean of its divisors is an integer number (2488320).

Almost surely, 2^164223213 is an apocalyptic number.

It is an amenable number.

164223213 is a deficient number, since it is larger than the sum of its proper divisors (154281747).

164223213 is a wasteful number, since it uses less digits than its factorization.

164223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159.

The product of its digits is 1728, while the sum is 24.

The square root of 164223213 is about 12814.9605149606. The cubic root of 164223213 is about 547.6185886026.

Adding to 164223213 its reverse (312322461), we get a palindrome (476545674).

The spelling of 164223213 in words is "one hundred sixty-four million, two hundred twenty-three thousand, two hundred thirteen".