2130500643 has 4 divisors (see below), whose sum is σ = 2840667528. Its totient is φ = 1420333760.

The previous prime is 2130500641. The next prime is 2130500681. The reversal of 2130500643 is 3460050312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2130500643 - 2¹ = 2130500641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2130500641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355083438 + ... + 355083443.

It is an arithmetic number, because the mean of its divisors is an integer number (710166882).

Almost surely, 2^2130500643 is an apocalyptic number.

2130500643 is a deficient number, since it is larger than the sum of its proper divisors (710166885).

2130500643 is an equidigital number, since it uses as much as digits as its factorization.

2130500643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710166884.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2130500643 is about 46157.3465766827. The cubic root of 2130500643 is about 1286.7491495069.

Adding to 2130500643 its reverse (3460050312), we get a palindrome (5590550955).

The spelling of 2130500643 in words is "two billion, one hundred thirty million, five hundred thousand, six hundred forty-three".