20195273 has 4 divisors (see below), whose sum is σ = 23080320. Its totient is φ = 17310228.

The previous prime is 20195267. The next prime is 20195297. The reversal of 20195273 is 37259102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20195273 - 2⁸ = 20195017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20195243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1442513 + ... + 1442526.

It is an arithmetic number, because the mean of its divisors is an integer number (5770080).

Almost surely, 2^20195273 is an apocalyptic number.

It is an amenable number.

20195273 is a deficient number, since it is larger than the sum of its proper divisors (2885047).

20195273 is an equidigital number, since it uses as much as digits as its factorization.

20195273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885046.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 20195273 is about 4493.9151082325. The cubic root of 20195273 is about 272.3223228025.

The spelling of 20195273 in words is "twenty million, one hundred ninety-five thousand, two hundred seventy-three".