100245816 has 128 divisors (see below), whose sum is σ = 313804800. Its totient is φ = 29376000.

The previous prime is 100245811. The next prime is 100245829. The reversal of 100245816 is 618542001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 100245816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100245811) 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, 72976 + ... + 74336.

It is an arithmetic number, because the mean of its divisors is an integer number (2451600).

Almost surely, 2^100245816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100245816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156902400).

100245816 is an abundant number, since it is smaller than the sum of its proper divisors (213558984).

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

100245816 is a wasteful number, since it uses less digits than its factorization.

100245816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 100245816 is about 10012.2832560810. The cubic root of 100245816 is about 464.5388977527.

Adding to 100245816 its reverse (618542001), we get a palindrome (718787817).

The spelling of 100245816 in words is "one hundred million, two hundred forty-five thousand, eight hundred sixteen".