164214143 has 4 divisors (see below), whose sum is σ = 168219408. Its totient is φ = 160208880.

The previous prime is 164214109. The next prime is 164214191. The reversal of 164214143 is 341412461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341412461 = 13 ⋅26262497.

It is a cyclic number.

It is not a de Polignac number, because 164214143 - 2⁶ = 164214079 is a prime.

It is a super-2 number, since 2×164214143² = 53932569522448898, 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 (164214343) 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, 2002571 + ... + 2002652.

It is an arithmetic number, because the mean of its divisors is an integer number (42054852).

Almost surely, 2^164214143 is an apocalyptic number.

164214143 is a deficient number, since it is larger than the sum of its proper divisors (4005265).

164214143 is an equidigital number, since it uses as much as digits as its factorization.

164214143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005264.

The product of its digits is 2304, while the sum is 26.

The square root of 164214143 is about 12814.6066268146. The cubic root of 164214143 is about 547.6085068122.

The spelling of 164214143 in words is "one hundred sixty-four million, two hundred fourteen thousand, one hundred forty-three".