20537142 has 16 divisors (see below), whose sum is σ = 41134080. Its totient is φ = 6835752.

The previous prime is 20537141. The next prime is 20537149. The reversal of 20537142 is 24173502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20537141) 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, 2859 + ... + 7017.

It is an arithmetic number, because the mean of its divisors is an integer number (2570880).

Almost surely, 2^20537142 is an apocalyptic number.

20537142 is an abundant number, since it is smaller than the sum of its proper divisors (20596938).

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

20537142 is a wasteful number, since it uses less digits than its factorization.

20537142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20537142 is about 4531.7923606450. The cubic root of 20537142 is about 273.8503720674.

The spelling of 20537142 in words is "twenty million, five hundred thirty-seven thousand, one hundred forty-two".