20186061 has 8 divisors (see below), whose sum is σ = 30759744. Its totient is φ = 11534880.

The previous prime is 20186041. The next prime is 20186069. The reversal of 20186061 is 16068102.

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

It is not a de Polignac number, because 20186061 - 2⁹ = 20185549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20186069) 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 in 7 ways as a sum of consecutive naturals, for example, 480600 + ... + 480641.

It is an arithmetic number, because the mean of its divisors is an integer number (3844968).

Almost surely, 2^20186061 is an apocalyptic number.

20186061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20186061 is a deficient number, since it is larger than the sum of its proper divisors (10573683).

20186061 is an equidigital number, since it uses as much as digits as its factorization.

20186061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961251.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 20186061 is about 4492.8900498454. The cubic root of 20186061 is about 272.2809102275.

The spelling of 20186061 in words is "twenty million, one hundred eighty-six thousand, sixty-one".