164436121 has 8 divisors (see below), whose sum is σ = 179725824. Its totient is φ = 149770560.

The previous prime is 164436113. The next prime is 164436137. The reversal of 164436121 is 121634461.

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 164436121 - 2³ = 164436113 is a prime.

It is a super-3 number, since 3×164436121³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164436121.

It is not an unprimeable number, because it can be changed into a prime (164436191) 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 7 ways as a sum of consecutive naturals, for example, 155485 + ... + 156538.

It is an arithmetic number, because the mean of its divisors is an integer number (22465728).

Almost surely, 2^164436121 is an apocalyptic number.

It is an amenable number.

164436121 is a deficient number, since it is larger than the sum of its proper divisors (15289703).

164436121 is a wasteful number, since it uses less digits than its factorization.

164436121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312071.

The product of its digits is 3456, while the sum is 28.

The square root of 164436121 is about 12823.2648338869. The cubic root of 164436121 is about 547.8551406852.

The spelling of 164436121 in words is "one hundred sixty-four million, four hundred thirty-six thousand, one hundred twenty-one".