164734520 has 32 divisors (see below), whose sum is σ = 371379600. Its totient is φ = 65764608.

The previous prime is 164734519. The next prime is 164734543. The reversal of 164734520 is 25437461.

164734520 = T₈₁₁₅ + T₈₁₁₆ + ... + T₈₁₁₉.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18116 + ... + 25644.

Almost surely, 2^164734520 is an apocalyptic number.

164734520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164734520 is an abundant number, since it is smaller than the sum of its proper divisors (206645080).

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

164734520 is a wasteful number, since it uses less digits than its factorization.

164734520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087 (or 8083 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 164734520 is about 12834.8946236422. The cubic root of 164734520 is about 548.1863344178.

The spelling of 164734520 in words is "one hundred sixty-four million, seven hundred thirty-four thousand, five hundred twenty".