206451102 has 64 divisors (see below), whose sum is σ = 492065280. Its totient is φ = 56918400.

The previous prime is 206451101. The next prime is 206451143. The reversal of 206451102 is 201154602.

206451102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206451101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59224 + ... + 62612.

It is an arithmetic number, because the mean of its divisors is an integer number (7688520).

Almost surely, 2^206451102 is an apocalyptic number.

206451102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 206451102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246032640).

206451102 is an abundant number, since it is smaller than the sum of its proper divisors (285614178).

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

206451102 is a wasteful number, since it uses less digits than its factorization.

206451102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 206451102 is about 14368.4063834512. The cubic root of 206451102 is about 591.0248414179.

The spelling of 206451102 in words is "two hundred six million, four hundred fifty-one thousand, one hundred two".