2102130654 has 64 divisors (see below), whose sum is σ = 4715988480. Its totient is φ = 620403840.

The previous prime is 2102130649. The next prime is 2102130673. The reversal of 2102130654 is 4560312012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199777 + ... + 210035.

It is an arithmetic number, because the mean of its divisors is an integer number (73687320).

Almost surely, 2^2102130654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102130654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2357994240).

2102130654 is an abundant number, since it is smaller than the sum of its proper divisors (2613857826).

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

2102130654 is a wasteful number, since it uses less digits than its factorization.

2102130654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10385.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2102130654 is about 45848.9983969116. The cubic root of 2102130654 is about 1281.0121092532.

Adding to 2102130654 its reverse (4560312012), we get a palindrome (6662442666).

The spelling of 2102130654 in words is "two billion, one hundred two million, one hundred thirty thousand, six hundred fifty-four".