20000146 has 8 divisors (see below), whose sum is σ = 30968064. Its totient is φ = 9677460.

The previous prime is 20000107. The next prime is 20000147. The reversal of 20000146 is 64100002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20000147) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 161230 + ... + 161353.

It is an arithmetic number, because the mean of its divisors is an integer number (3871008).

Almost surely, 2^20000146 is an apocalyptic number.

20000146 is a deficient number, since it is larger than the sum of its proper divisors (10967918).

20000146 is a wasteful number, since it uses less digits than its factorization.

20000146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322616.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20000146 is about 4472.1522782660. The cubic root of 20000146 is about 271.4424221662.

Adding to 20000146 its reverse (64100002), we get a palindrome (84100148).

The spelling of 20000146 in words is "twenty million, one hundred forty-six", and thus it is an aban number.