20595142 has 8 divisors (see below), whose sum is σ = 31284000. Its totient is φ = 10167144.

The previous prime is 20595139. The next prime is 20595163. The reversal of 20595142 is 24159502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20595142.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 65017 + ... + 65332.

It is an arithmetic number, because the mean of its divisors is an integer number (3910500).

Almost surely, 2^20595142 is an apocalyptic number.

20595142 is a deficient number, since it is larger than the sum of its proper divisors (10688858).

20595142 is a wasteful number, since it uses less digits than its factorization.

20595142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130430.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 20595142 is about 4538.1870829661. The cubic root of 20595142 is about 274.1079280716.

The spelling of 20595142 in words is "twenty million, five hundred ninety-five thousand, one hundred forty-two".