20142132 has 48 divisors (see below), whose sum is σ = 48771072. Its totient is φ = 6465760.

The previous prime is 20142131. The next prime is 20142163. The reversal of 20142132 is 23124102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20142131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39793 + ... + 40295.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^20142132 is an apocalyptic number.

It is an amenable number.

20142132 is an abundant number, since it is smaller than the sum of its proper divisors (28628940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20142132 is a wasteful number, since it uses less digits than its factorization.

20142132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20142132 is about 4487.9986631014. The cubic root of 20142132 is about 272.0832537827.

Adding to 20142132 its reverse (23124102), we get a palindrome (43266234).

The spelling of 20142132 in words is "twenty million, one hundred forty-two thousand, one hundred thirty-two".