164216315 has 4 divisors (see below), whose sum is σ = 197059584. Its totient is φ = 131373048.

The previous prime is 164216309. The next prime is 164216329. The reversal of 164216315 is 513612461.

It is a happy number.

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 164216315 - 2²² = 160022011 is a prime.

It is a super-2 number, since 2×164216315² = 53933996224358450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16421627 + ... + 16421636.

It is an arithmetic number, because the mean of its divisors is an integer number (49264896).

Almost surely, 2^164216315 is an apocalyptic number.

164216315 is a deficient number, since it is larger than the sum of its proper divisors (32843269).

164216315 is an equidigital number, since it uses as much as digits as its factorization.

164216315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32843268.

The product of its digits is 4320, while the sum is 29.

The square root of 164216315 is about 12814.6913735759. The cubic root of 164216315 is about 547.6109211402.

Adding to 164216315 its reverse (513612461), we get a palindrome (677828776).

The spelling of 164216315 in words is "one hundred sixty-four million, two hundred sixteen thousand, three hundred fifteen".