20060191 has 2 divisors, whose sum is σ = 20060192. Its totient is φ = 20060190.

The previous prime is 20060147. The next prime is 20060197. The reversal of 20060191 is 19106002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20060191 - 2⁹ = 20059679 is a prime.

It is a super-2 number, since 2×20060191² = 804822525912962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20060197) by changing a digit.

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 as a sum of consecutive naturals, namely, 10030095 + 10030096.

It is an arithmetic number, because the mean of its divisors is an integer number (10030096).

Almost surely, 2^20060191 is an apocalyptic number.

20060191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20060191 is an equidigital number, since it uses as much as digits as its factorization.

20060191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 20060191 is about 4478.8604577504. The cubic root of 20060191 is about 271.7137947939.

Adding to 20060191 its reverse (19106002), we get a palindrome (39166193).

The spelling of 20060191 in words is "twenty million, sixty thousand, one hundred ninety-one".