164221414 has 16 divisors (see below), whose sum is σ = 283742208. Its totient is φ = 69825672.

The previous prime is 164221391. The next prime is 164221417. The reversal of 164221414 is 414122461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164221417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44404 + ... + 47959.

It is an arithmetic number, because the mean of its divisors is an integer number (17733888).

Almost surely, 2^164221414 is an apocalyptic number.

164221414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

164221414 is a deficient number, since it is larger than the sum of its proper divisors (119520794).

164221414 is a wasteful number, since it uses less digits than its factorization.

164221414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92499.

The product of its digits is 1536, while the sum is 25.

The square root of 164221414 is about 12814.8903233699. The cubic root of 164221414 is about 547.6165889473.

Adding to 164221414 its reverse (414122461), we get a palindrome (578343875).

The spelling of 164221414 in words is "one hundred sixty-four million, two hundred twenty-one thousand, four hundred fourteen".