164215007 has 4 divisors (see below), whose sum is σ = 179143656. Its totient is φ = 149286360.

The previous prime is 164215003. The next prime is 164215013. The reversal of 164215007 is 700512461.

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 164215007 - 2² = 164215003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164215001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7464308 + ... + 7464329.

It is an arithmetic number, because the mean of its divisors is an integer number (44785914).

Almost surely, 2^164215007 is an apocalyptic number.

164215007 is a deficient number, since it is larger than the sum of its proper divisors (14928649).

164215007 is a wasteful number, since it uses less digits than its factorization.

164215007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14928648.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 164215007 is about 12814.6403383006. The cubic root of 164215007 is about 547.6094672104.

Adding to 164215007 its reverse (700512461), we get a palindrome (864727468).

The spelling of 164215007 in words is "one hundred sixty-four million, two hundred fifteen thousand, seven".