20064146 has 4 divisors (see below), whose sum is σ = 30096222. Its totient is φ = 10032072.

The previous prime is 20064139. The next prime is 20064169. The reversal of 20064146 is 64146002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19140625 + 923521 = 4375^2 + 961^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5016035 + ... + 5016038.

Almost surely, 2^20064146 is an apocalyptic number.

20064146 is a deficient number, since it is larger than the sum of its proper divisors (10032076).

20064146 is a wasteful number, since it uses less digits than its factorization.

20064146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032075.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20064146 is about 4479.3019545460. The cubic root of 20064146 is about 271.7316503474.

It can be divided in two parts, 200 and 64146, that added together give a palindrome (64346).

The spelling of 20064146 in words is "twenty million, sixty-four thousand, one hundred forty-six".