20120086 has 12 divisors (see below), whose sum is σ = 35107668. Its totient is φ = 8622852.

The previous prime is 20120081. The next prime is 20120143. The reversal of 20120086 is 68002102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102556 + ... + 102751.

It is an arithmetic number, because the mean of its divisors is an integer number (2925639).

Almost surely, 2^20120086 is an apocalyptic number.

20120086 is a deficient number, since it is larger than the sum of its proper divisors (14987582).

20120086 is a wasteful number, since it uses less digits than its factorization.

20120086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205323 (or 205316 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20120086 is about 4485.5418847671. The cubic root of 20120086 is about 271.9839505380.

Adding to 20120086 its reverse (68002102), we get a palindrome (88122188).

The spelling of 20120086 in words is "twenty million, one hundred twenty thousand, eighty-six".