20134146 has 16 divisors (see below), whose sum is σ = 40479264. Its totient is φ = 6676224.

The previous prime is 20134139. The next prime is 20134183. The reversal of 20134146 is 64143102.

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, 7536 + ... + 9851.

It is an arithmetic number, because the mean of its divisors is an integer number (2529954).

Almost surely, 2^20134146 is an apocalyptic number.

20134146 is an abundant number, since it is smaller than the sum of its proper divisors (20345118).

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

20134146 is a wasteful number, since it uses less digits than its factorization.

20134146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17585.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20134146 is about 4487.1088687483. The cubic root of 20134146 is about 272.0472902926.

Adding to 20134146 its reverse (64143102), we get a palindrome (84277248).

The spelling of 20134146 in words is "twenty million, one hundred thirty-four thousand, one hundred forty-six".