100204512 has 48 divisors (see below), whose sum is σ = 272114640. Its totient is φ = 32248832.

The previous prime is 100204487. The next prime is 100204513. The reversal of 100204512 is 215402001.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 100204491 and 100204500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100204513) 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, 15213 + ... + 20780.

It is an arithmetic number, because the mean of its divisors is an integer number (5669055).

Almost surely, 2^100204512 is an apocalyptic number.

100204512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100204512 is an abundant number, since it is smaller than the sum of its proper divisors (171910128).

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

100204512 is a wasteful number, since it uses less digits than its factorization.

100204512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36035 (or 36027 counting only the distinct ones).

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

The square root of 100204512 is about 10010.2203771945. The cubic root of 100204512 is about 464.4750881054.

Adding to 100204512 its reverse (215402001), we get a palindrome (315606513).

The spelling of 100204512 in words is "one hundred million, two hundred four thousand, five hundred twelve".