2102522156 has 24 divisors (see below), whose sum is σ = 4350047520. Its totient is φ = 870008832.

The previous prime is 2102522153. The next prime is 2102522179. The reversal of 2102522156 is 6512252012.

It is not an unprimeable number, because it can be changed into a prime (2102522153) 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 7 ways as a sum of consecutive naturals, for example, 1293845 + ... + 1295468.

It is an arithmetic number, because the mean of its divisors is an integer number (181251980).

Almost surely, 2^2102522156 is an apocalyptic number.

It is an amenable number.

2102522156 is an abundant number, since it is smaller than the sum of its proper divisors (2247525364).

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

2102522156 is a wasteful number, since it uses less digits than its factorization.

2102522156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589353 (or 2589351 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2102522156 is about 45853.2676698183. The cubic root of 2102522156 is about 1281.0916297896.

Adding to 2102522156 its reverse (6512252012), we get a palindrome (8614774168).

The spelling of 2102522156 in words is "two billion, one hundred two million, five hundred twenty-two thousand, one hundred fifty-six".