20010146 has 16 divisors (see below), whose sum is σ = 32405184. Its totient is φ = 9212304.

The previous prime is 20010127. The next prime is 20010157. The reversal of 20010146 is 64101002.

It is a self number, because there is not a number n which added to its sum of digits gives 20010146.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13955 + ... + 15321.

It is an arithmetic number, because the mean of its divisors is an integer number (2025324).

Almost surely, 2^20010146 is an apocalyptic number.

20010146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20010146 is a deficient number, since it is larger than the sum of its proper divisors (12395038).

20010146 is a wasteful number, since it uses less digits than its factorization.

20010146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20010146 is about 4473.2701684562. The cubic root of 20010146 is about 271.4876547017.

Adding to 20010146 its reverse (64101002), we get a palindrome (84111148).

The spelling of 20010146 in words is "twenty million, ten thousand, one hundred forty-six".