164472213 has 4 divisors (see below), whose sum is σ = 219296288. Its totient is φ = 109648140.

The previous prime is 164472211. The next prime is 164472221. The reversal of 164472213 is 312274461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 164472213 - 2¹ = 164472211 is a prime.

It is a super-2 number, since 2×164472213² = 54102217698234738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164472211) 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, 27412033 + ... + 27412038.

It is an arithmetic number, because the mean of its divisors is an integer number (54824072).

Almost surely, 2^164472213 is an apocalyptic number.

It is an amenable number.

164472213 is a deficient number, since it is larger than the sum of its proper divisors (54824075).

164472213 is an equidigital number, since it uses as much as digits as its factorization.

164472213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54824074.

The product of its digits is 8064, while the sum is 30.

The square root of 164472213 is about 12824.6720425904. The cubic root of 164472213 is about 547.8952205677.

The spelling of 164472213 in words is "one hundred sixty-four million, four hundred seventy-two thousand, two hundred thirteen".