164129867 has 4 divisors (see below), whose sum is σ = 179050776. Its totient is φ = 149208960.

The previous prime is 164129843. The next prime is 164129869. The reversal of 164129867 is 768921461.

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 164129867 - 2⁶ = 164129803 is a prime.

It is a super-2 number, since 2×164129867² = 53877226482875378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164129869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7460438 + ... + 7460459.

It is an arithmetic number, because the mean of its divisors is an integer number (44762694).

Almost surely, 2^164129867 is an apocalyptic number.

164129867 is a deficient number, since it is larger than the sum of its proper divisors (14920909).

164129867 is a wasteful number, since it uses less digits than its factorization.

164129867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14920908.

The product of its digits is 145152, while the sum is 44.

The square root of 164129867 is about 12811.3179259591. The cubic root of 164129867 is about 547.5148117731.

It can be divided in two parts, 164 and 129867, that added together give a palindrome (130031).

The spelling of 164129867 in words is "one hundred sixty-four million, one hundred twenty-nine thousand, eight hundred sixty-seven".