64176121 has 3 divisors (see below), whose sum is σ = 64184133. Its totient is φ = 64168110.

The previous prime is 64176113. The next prime is 64176127. The reversal of 64176121 is 12167146.

The square root of 64176121 is 8011.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12167146 = 2 ⋅6083573.

It is not a de Polignac number, because 64176121 - 2³ = 64176113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64176121.

It is not an unprimeable number, because it can be changed into a prime (64176127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4006 + ... + 12016.

It is an arithmetic number, because the mean of its divisors is an integer number (21394711).

Almost surely, 2^64176121 is an apocalyptic number.

64176121 is the 8011-st square number.

64176121 is the 4006-th centered octagonal number.

It is an amenable number.

64176121 is a deficient number, since it is larger than the sum of its proper divisors (8012).

64176121 is an frugal number, since it uses more digits than its factorization.

64176121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16022 (or 8011 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The cubic root of 64176121 is about 400.3665826902.

The spelling of 64176121 in words is "sixty-four million, one hundred seventy-six thousand, one hundred twenty-one".