204510102 has 16 divisors (see below), whose sum is σ = 433080432. Its totient is φ = 64160000.

The previous prime is 204510073. The next prime is 204510109. The reversal of 204510102 is 201015402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204510109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002399 + ... + 1002602.

It is an arithmetic number, because the mean of its divisors is an integer number (27067527).

Almost surely, 2^204510102 is an apocalyptic number.

204510102 is an abundant number, since it is smaller than the sum of its proper divisors (228570330).

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

204510102 is a wasteful number, since it uses less digits than its factorization.

204510102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005023.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 204510102 is about 14300.7028498602. The cubic root of 204510102 is about 589.1667851780.

Adding to 204510102 its reverse (201015402), we get a palindrome (405525504).

The spelling of 204510102 in words is "two hundred four million, five hundred ten thousand, one hundred two".