20270195 has 32 divisors (see below), whose sum is σ = 27760320. Its totient is φ = 14080000.

The previous prime is 20270183. The next prime is 20270197. The reversal of 20270195 is 59107202.

It is not a de Polignac number, because 20270195 - 2¹⁴ = 20253811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20270197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200645 + ... + 200745.

It is an arithmetic number, because the mean of its divisors is an integer number (867510).

Almost surely, 2^20270195 is an apocalyptic number.

20270195 is a deficient number, since it is larger than the sum of its proper divisors (7490125).

20270195 is a wasteful number, since it uses less digits than its factorization.

20270195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 20270195 is about 4502.2433297191. The cubic root of 20270195 is about 272.6586680806.

Adding to 20270195 its reverse (59107202), we get a palindrome (79377397).

The spelling of 20270195 in words is "twenty million, two hundred seventy thousand, one hundred ninety-five".