164215135 has 16 divisors (see below), whose sum is σ = 226728000. Its totient is φ = 111845376.

The previous prime is 164215123. The next prime is 164215141. The reversal of 164215135 is 531512461.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164215135 is a prime.

It is a super-2 number, since 2×164215135² = 53933221126136450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10530 + ... + 20959.

It is an arithmetic number, because the mean of its divisors is an integer number (14170500).

Almost surely, 2^164215135 is an apocalyptic number.

164215135 is a deficient number, since it is larger than the sum of its proper divisors (62512865).

164215135 is a wasteful number, since it uses less digits than its factorization.

164215135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31650.

The product of its digits is 3600, while the sum is 28.

The square root of 164215135 is about 12814.6453325872. The cubic root of 164215135 is about 547.6096094914.

Adding to 164215135 its reverse (531512461), we get a palindrome (695727596).

The spelling of 164215135 in words is "one hundred sixty-four million, two hundred fifteen thousand, one hundred thirty-five".