164872213 has 8 divisors (see below), whose sum is σ = 180135936. Its totient is φ = 149654400.

The previous prime is 164872207. The next prime is 164872217. The reversal of 164872213 is 312278461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164872213 - 2²¹ = 162775061 is a prime.

It is a super-3 number, since 3×164872213³ (a number of 26 digits) contains 333 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 (164872217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3733 + ... + 18538.

It is an arithmetic number, because the mean of its divisors is an integer number (22516992).

Almost surely, 2^164872213 is an apocalyptic number.

It is an amenable number.

164872213 is a deficient number, since it is larger than the sum of its proper divisors (15263723).

164872213 is a wasteful number, since it uses less digits than its factorization.

164872213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22955.

The product of its digits is 16128, while the sum is 34.

The square root of 164872213 is about 12840.2575129940. The cubic root of 164872213 is about 548.3390253462.

The spelling of 164872213 in words is "one hundred sixty-four million, eight hundred seventy-two thousand, two hundred thirteen".