100245500 has 72 divisors (see below), whose sum is σ = 229472880. Its totient is φ = 38253600.

The previous prime is 100245499. The next prime is 100245511. The reversal of 100245500 is 5542001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264311 + ... + 264689.

Almost surely, 2^100245500 is an apocalyptic number.

100245500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100245500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114736440).

100245500 is an abundant number, since it is smaller than the sum of its proper divisors (129227380).

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

100245500 is a wasteful number, since it uses less digits than its factorization.

100245500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 100245500 is about 10012.2674754523. The cubic root of 100245500 is about 464.5384096377.

Adding to 100245500 its reverse (5542001), we get a palindrome (105787501).

The spelling of 100245500 in words is "one hundred million, two hundred forty-five thousand, five hundred".