206106102 has 24 divisors (see below), whose sum is σ = 452219040. Its totient is φ = 67831920.

The previous prime is 206106101. The next prime is 206106203. The reversal of 206106102 is 201601602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206106101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71049 + ... + 73892.

It is an arithmetic number, because the mean of its divisors is an integer number (18842460).

Almost surely, 2^206106102 is an apocalyptic number.

206106102 is an abundant number, since it is smaller than the sum of its proper divisors (246112938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206106102 is a wasteful number, since it uses less digits than its factorization.

206106102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145028 (or 145025 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 206106102 is about 14356.3958568995. The cubic root of 206106102 is about 590.6954377402.

Adding to 206106102 its reverse (201601602), we get a palindrome (407707704).

The spelling of 206106102 in words is "two hundred six million, one hundred six thousand, one hundred two".