100521126 has 12 divisors (see below), whose sum is σ = 217795812. Its totient is φ = 33507036.

The previous prime is 100521121. The next prime is 100521137. The reversal of 100521126 is 621125001.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5584507 = 100521126 / (1 + 0 + 0 + 5 + 2 + 1 + 1 + 2 + 6).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100521099 and 100521108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100521121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2792236 + ... + 2792271.

It is an arithmetic number, because the mean of its divisors is an integer number (18149651).

Almost surely, 2^100521126 is an apocalyptic number.

100521126 is an abundant number, since it is smaller than the sum of its proper divisors (117274686).

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

100521126 is a wasteful number, since it uses less digits than its factorization.

100521126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5584515 (or 5584512 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 100521126 is about 10026.0224416266. The cubic root of 100521126 is about 464.9637710241.

Adding to 100521126 its reverse (621125001), we get a palindrome (721646127).

The spelling of 100521126 in words is "one hundred million, five hundred twenty-one thousand, one hundred twenty-six".