100526821 has 8 divisors (see below), whose sum is σ = 101787840. Its totient is φ = 99271968.

The previous prime is 100526809. The next prime is 100526851. The reversal of 100526821 is 128625001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100526821 - 2¹¹ = 100524773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100526851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37105 + ... + 39721.

It is an arithmetic number, because the mean of its divisors is an integer number (12723480).

Almost surely, 2^100526821 is an apocalyptic number.

It is an amenable number.

100526821 is a deficient number, since it is larger than the sum of its proper divisors (1261019).

100526821 is a wasteful number, since it uses less digits than its factorization.

100526821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 100526821 is about 10026.3064485383. The cubic root of 100526821 is about 464.9725516615.

The spelling of 100526821 in words is "one hundred million, five hundred twenty-six thousand, eight hundred twenty-one".