100530100 has 72 divisors (see below), whose sum is σ = 242172000. Its totient is φ = 35913600.

The previous prime is 100530097. The next prime is 100530103. The reversal of 100530100 is 1035001.

It is an interprime number because it is at equal distance from previous prime (100530097) and next prime (100530103).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100530103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64126 + ... + 65674.

It is an arithmetic number, because the mean of its divisors is an integer number (3363500).

Almost surely, 2^100530100 is an apocalyptic number.

100530100 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 100530100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121086000).

100530100 is an abundant number, since it is smaller than the sum of its proper divisors (141641900).

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

100530100 is a wasteful number, since it uses less digits than its factorization.

100530100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 100530100 is about 10026.4699670422. The cubic root of 100530100 is about 464.9776071230.

Adding to 100530100 its reverse (1035001), we get a palindrome (101565101).

The spelling of 100530100 in words is "one hundred million, five hundred thirty thousand, one hundred".