20133141 has 16 divisors (see below), whose sum is σ = 32294400. Its totient is φ = 10898928.

The previous prime is 20133137. The next prime is 20133149. The reversal of 20133141 is 14133102.

It is not a de Polignac number, because 20133141 - 2² = 20133137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20133141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24831 + ... + 25628.

It is an arithmetic number, because the mean of its divisors is an integer number (2018400).

Almost surely, 2^20133141 is an apocalyptic number.

20133141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20133141 is a deficient number, since it is larger than the sum of its proper divisors (12161259).

20133141 is a wasteful number, since it uses less digits than its factorization.

20133141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50488.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 20133141 is about 4486.9968798741. The cubic root of 20133141 is about 272.0427637853.

Adding to 20133141 its reverse (14133102), we get a palindrome (34266243).

The spelling of 20133141 in words is "twenty million, one hundred thirty-three thousand, one hundred forty-one".