164321107 has 4 divisors (see below), whose sum is σ = 168762256. Its totient is φ = 159879960.

The previous prime is 164321093. The next prime is 164321117. The reversal of 164321107 is 701123461.

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

It is not a de Polignac number, because 164321107 - 2¹⁵ = 164288339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164321117) 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, 2220519 + ... + 2220592.

It is an arithmetic number, because the mean of its divisors is an integer number (42190564).

Almost surely, 2^164321107 is an apocalyptic number.

164321107 is a deficient number, since it is larger than the sum of its proper divisors (4441149).

164321107 is an equidigital number, since it uses as much as digits as its factorization.

164321107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441148.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 164321107 is about 12818.7794660802. The cubic root of 164321107 is about 547.7273794054.

Adding to 164321107 its reverse (701123461), we get a palindrome (865444568).

The spelling of 164321107 in words is "one hundred sixty-four million, three hundred twenty-one thousand, one hundred seven".