20792143 has 2 divisors, whose sum is σ = 20792144. Its totient is φ = 20792142.

The previous prime is 20792119. The next prime is 20792179. The reversal of 20792143 is 34129702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20792143 - 2¹³ = 20783951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20792183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10396071 + 10396072.

It is an arithmetic number, because the mean of its divisors is an integer number (10396072).

Almost surely, 2^20792143 is an apocalyptic number.

20792143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20792143 is an equidigital number, since it uses as much as digits as its factorization.

20792143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20792143 is about 4559.8402384294. The cubic root of 20792143 is about 274.9791411176.

The spelling of 20792143 in words is "twenty million, seven hundred ninety-two thousand, one hundred forty-three".