2134205647 has 18 divisors (see below), whose sum is σ = 2577026088. Its totient is φ = 1731153384.

The previous prime is 2134205639. The next prime is 2134205651. The reversal of 2134205647 is 7465024312.

It is not a de Polignac number, because 2134205647 - 2³ = 2134205639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134205617) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2321854 + ... + 2322772.

It is an arithmetic number, because the mean of its divisors is an integer number (143168116).

Almost surely, 2^2134205647 is an apocalyptic number.

2134205647 is a deficient number, since it is larger than the sum of its proper divisors (442820441).

2134205647 is an frugal number, since it uses more digits than its factorization.

2134205647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 2134205647 is about 46197.4636424988. The cubic root of 2134205647 is about 1287.4946158948.

Adding to 2134205647 its reverse (7465024312), we get a palindrome (9599229959).

The spelling of 2134205647 in words is "two billion, one hundred thirty-four million, two hundred five thousand, six hundred forty-seven".