100523900 has 18 divisors (see below), whose sum is σ = 218137080. Its totient is φ = 40209520.

The previous prime is 100523897. The next prime is 100523909. The reversal of 100523900 is 9325001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100523909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502520 + ... + 502719.

Almost surely, 2^100523900 is an apocalyptic number.

100523900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100523900 is an abundant number, since it is smaller than the sum of its proper divisors (117613180).

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

100523900 is a wasteful number, since it uses less digits than its factorization.

100523900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005253 (or 1005246 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 100523900 is about 10026.1607806777. The cubic root of 100523900 is about 464.9680480608.

Adding to 100523900 its reverse (9325001), we get a palindrome (109848901).

The spelling of 100523900 in words is "one hundred million, five hundred twenty-three thousand, nine hundred".