2101528 has 48 divisors (see below), whose sum is σ = 4692240. Its totient is φ = 876480.

The previous prime is 2101513. The next prime is 2101531. The reversal of 2101528 is 8251012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12501 + ... + 12667.

It is an arithmetic number, because the mean of its divisors is an integer number (97755).

2^2101528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2346120).

2101528 is an abundant number, since it is smaller than the sum of its proper divisors (2590712).

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

2101528 is a wasteful number, since it uses less digits than its factorization.

2101528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2101528 is about 1449.6647888391. The cubic root of 2101528 is about 128.0889680951.

The spelling of 2101528 in words is "two million, one hundred one thousand, five hundred twenty-eight".