20134142 has 32 divisors (see below), whose sum is σ = 36246528. Its totient is φ = 8207136.

The previous prime is 20134139. The next prime is 20134183. The reversal of 20134142 is 24143102.

It is a self number, because there is not a number n which added to its sum of digits gives 20134142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23933 + ... + 24759.

It is an arithmetic number, because the mean of its divisors is an integer number (1132704).

Almost surely, 2^20134142 is an apocalyptic number.

20134142 is a deficient number, since it is larger than the sum of its proper divisors (16112386).

20134142 is a wasteful number, since it uses less digits than its factorization.

20134142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20134142 is about 4487.1084230270. The cubic root of 20134142 is about 272.0472722769.

Adding to 20134142 its reverse (24143102), we get a palindrome (44277244).

It can be divided in two parts, 201 and 34142, that added together give a palindrome (34343).

The spelling of 20134142 in words is "twenty million, one hundred thirty-four thousand, one hundred forty-two".