100104520 has 32 divisors (see below), whose sum is σ = 233004600. Its totient is φ = 38660608.

The previous prime is 100104509. The next prime is 100104527. The reversal of 100104520 is 25401001.

It can be written as a sum of positive squares in 4 ways, for example, as 55026724 + 45077796 = 7418^2 + 6714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100104520.

It is not an unprimeable number, because it can be changed into a prime (100104527) 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, 41989 + ... + 44308.

Almost surely, 2^100104520 is an apocalyptic number.

100104520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100104520 is an abundant number, since it is smaller than the sum of its proper divisors (132900080).

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

100104520 is a wasteful number, since it uses less digits than its factorization.

100104520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86337 (or 86333 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 100104520 is about 10005.2246351594. The cubic root of 100104520 is about 464.3205400081.

Adding to 100104520 its reverse (25401001), we get a palindrome (125505521).

The spelling of 100104520 in words is "one hundred million, one hundred four thousand, five hundred twenty".