20142041 has 4 divisors (see below), whose sum is σ = 20275584. Its totient is φ = 20008500.

The previous prime is 20142019. The next prime is 20142047. The reversal of 20142041 is 14024102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20142041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20142047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66545 + ... + 66846.

It is an arithmetic number, because the mean of its divisors is an integer number (5068896).

Almost surely, 2^20142041 is an apocalyptic number.

It is an amenable number.

20142041 is a deficient number, since it is larger than the sum of its proper divisors (133543).

20142041 is a wasteful number, since it uses less digits than its factorization.

20142041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133542.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20142041 is about 4487.9885249408. The cubic root of 20142041 is about 272.0828440344.

Adding to 20142041 its reverse (14024102), we get a palindrome (34166143).

The spelling of 20142041 in words is "twenty million, one hundred forty-two thousand, forty-one".