2100522 has 8 divisors (see below), whose sum is σ = 4201056. Its totient is φ = 700172.

The previous prime is 2100493. The next prime is 2100523. The reversal of 2100522 is 2250012.

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

2100522 is an admirable number.

It is a super-3 number, since 3×2100522³ = 27803723330374309944, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100498 and 2100507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175038 + ... + 175049.

It is an arithmetic number, because the mean of its divisors is an integer number (525132).

2^2100522 is an apocalyptic number.

2100522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2100522 is a wasteful number, since it uses less digits than its factorization.

2100522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350092.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2100522 is about 1449.3177705390. The cubic root of 2100522 is about 128.0685261328.

Adding to 2100522 its reverse (2250012), we get a palindrome (4350534).

The spelling of 2100522 in words is "two million, one hundred thousand, five hundred twenty-two".