164421134 has 16 divisors (see below), whose sum is σ = 252592128. Its totient is φ = 80233752.

The previous prime is 164421119. The next prime is 164421137. The reversal of 164421134 is 431124461.

It is a happy number.

It is a super-3 number, since 3×164421134³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164421137) 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, 33719 + ... + 38285.

It is an arithmetic number, because the mean of its divisors is an integer number (15787008).

Almost surely, 2^164421134 is an apocalyptic number.

164421134 is a deficient number, since it is larger than the sum of its proper divisors (88170994).

164421134 is a wasteful number, since it uses less digits than its factorization.

164421134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999.

The product of its digits is 2304, while the sum is 26.

The square root of 164421134 is about 12822.6804530098. The cubic root of 164421134 is about 547.8384960161.

Adding to 164421134 its reverse (431124461), we get a palindrome (595545595).

It can be divided in two parts, 16442 and 1134, that added together give a cube (17576 = 26³).

The spelling of 164421134 in words is "one hundred sixty-four million, four hundred twenty-one thousand, one hundred thirty-four".