164121456 has 20 divisors (see below), whose sum is σ = 423980552. Its totient is φ = 54707136.

The previous prime is 164121439. The next prime is 164121481. The reversal of 164121456 is 654121461.

164121456 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1709551 + ... + 1709646.

Almost surely, 2^164121456 is an apocalyptic number.

164121456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164121456 is an abundant number, since it is smaller than the sum of its proper divisors (259859096).

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

164121456 is a wasteful number, since it uses less digits than its factorization.

164121456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419208 (or 3419202 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 164121456 is about 12810.9896573216. The cubic root of 164121456 is about 547.5054589644.

The spelling of 164121456 in words is "one hundred sixty-four million, one hundred twenty-one thousand, four hundred fifty-six".