20134143 has 8 divisors (see below), whose sum is σ = 29828400. Its totient is φ = 13422744.

The previous prime is 20134139. The next prime is 20134183. The reversal of 20134143 is 34143102.

It is not a de Polignac number, because 20134143 - 2² = 20134139 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372828 + ... + 372881.

It is an arithmetic number, because the mean of its divisors is an integer number (3728550).

Almost surely, 2^20134143 is an apocalyptic number.

20134143 is a deficient number, since it is larger than the sum of its proper divisors (9694257).

20134143 is an equidigital number, since it uses as much as digits as its factorization.

20134143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745718 (or 745712 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20134143 is about 4487.1085344574. The cubic root of 20134143 is about 272.0472767808.

Adding to 20134143 its reverse (34143102), we get a palindrome (54277245).

The spelling of 20134143 in words is "twenty million, one hundred thirty-four thousand, one hundred forty-three".