164218151 has 4 divisors (see below), whose sum is σ = 164270400. Its totient is φ = 164165904.

The previous prime is 164218081. The next prime is 164218157. The reversal of 164218151 is 151812461.

164218151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164218151 - 2¹⁴ = 164201767 is a prime.

It is a super-2 number, since 2×164218151² = 53935202235717602, 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 (164218157) 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, 21086 + ... + 27803.

It is an arithmetic number, because the mean of its divisors is an integer number (41067600).

Almost surely, 2^164218151 is an apocalyptic number.

164218151 is a deficient number, since it is larger than the sum of its proper divisors (52249).

164218151 is an equidigital number, since it uses as much as digits as its factorization.

164218151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52248.

The product of its digits is 1920, while the sum is 29.

The square root of 164218151 is about 12814.7630099039. The cubic root of 164218151 is about 547.6129619645.

The spelling of 164218151 in words is "one hundred sixty-four million, two hundred eighteen thousand, one hundred fifty-one".