20875134 has 32 divisors (see below), whose sum is σ = 47851776. Its totient is φ = 5947200.

The previous prime is 20875111. The next prime is 20875139. The reversal of 20875134 is 43157802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20875139) 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, 24829 + ... + 25655.

It is an arithmetic number, because the mean of its divisors is an integer number (1495368).

Almost surely, 2^20875134 is an apocalyptic number.

20875134 is an abundant number, since it is smaller than the sum of its proper divisors (26976642).

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

20875134 is a wasteful number, since it uses less digits than its factorization.

20875134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20875134 is about 4568.9313849083. The cubic root of 20875134 is about 275.3445114772.

The spelling of 20875134 in words is "twenty million, eight hundred seventy-five thousand, one hundred thirty-four".