20163141 has 16 divisors (see below), whose sum is σ = 30508800. Its totient is φ = 13155264.

The previous prime is 20163137. The next prime is 20163151. The reversal of 20163141 is 14136102.

It is a happy number.

It is not a de Polignac number, because 20163141 - 2² = 20163137 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163131) 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, 6676 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (1906800).

Almost surely, 2^20163141 is an apocalyptic number.

It is an amenable number.

20163141 is a deficient number, since it is larger than the sum of its proper divisors (10345659).

20163141 is a wasteful number, since it uses less digits than its factorization.

20163141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15945 (or 15939 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20163141 is about 4490.3386286560. The cubic root of 20163141 is about 272.1778185955.

Adding to 20163141 its reverse (14136102), we get a palindrome (34299243).

The spelling of 20163141 in words is "twenty million, one hundred sixty-three thousand, one hundred forty-one".