164215134 has 32 divisors (see below), whose sum is σ = 365559840. Its totient is φ = 54642816.

The previous prime is 164215123. The next prime is 164215141. The reversal of 164215134 is 431512461.

It is a happy number.

164215134 is a `hidden beast` number, since 1 + 642 + 1 + 5 + 13 + 4 = 666.

It is a super-2 number, since 2×164215134² = 53933220469275912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 164215098 and 164215107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32934 + ... + 37590.

It is an arithmetic number, because the mean of its divisors is an integer number (11423745).

Almost surely, 2^164215134 is an apocalyptic number.

164215134 is an abundant number, since it is smaller than the sum of its proper divisors (201344706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164215134 is a wasteful number, since it uses less digits than its factorization.

164215134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321 (or 5315 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 164215134 is about 12814.6452935694. The cubic root of 164215134 is about 547.6096083798.

Adding to 164215134 its reverse (431512461), we get a palindrome (595727595).

The spelling of 164215134 in words is "one hundred sixty-four million, two hundred fifteen thousand, one hundred thirty-four".