2101522 has 8 divisors (see below), whose sum is σ = 3199536. Its totient is φ = 1035012.

The previous prime is 2101513. The next prime is 2101531. The reversal of 2101522 is 2251012.

It is an interprime number because it is at equal distance from previous prime (2101513) and next prime (2101531).

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

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 3 ways as a sum of consecutive naturals, for example, 7708 + ... + 7975.

It is an arithmetic number, because the mean of its divisors is an integer number (399942).

2^2101522 is an apocalyptic number.

2101522 is a deficient number, since it is larger than the sum of its proper divisors (1098014).

2101522 is a wasteful number, since it uses less digits than its factorization.

2101522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15752.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2101522 is about 1449.6627193937. The cubic root of 2101522 is about 128.0888461942.

Adding to 2101522 its reverse (2251012), we get a palindrome (4352534).

The spelling of 2101522 in words is "two million, one hundred one thousand, five hundred twenty-two".