2134978571 has 16 divisors (see below), whose sum is σ = 2353573248. Its totient is φ = 1936546920.

The previous prime is 2134978537. The next prime is 2134978607. The reversal of 2134978571 is 1758794312.

It is not a de Polignac number, because 2134978571 - 2¹⁸ = 2134716427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2134978511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694580 + ... + 697646.

It is an arithmetic number, because the mean of its divisors is an integer number (147098328).

Almost surely, 2^2134978571 is an apocalyptic number.

2134978571 is a deficient number, since it is larger than the sum of its proper divisors (218594677).

2134978571 is an equidigital number, since it uses as much as digits as its factorization.

2134978571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623 (or 3601 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 2134978571 is about 46205.8283228426. The cubic root of 2134978571 is about 1287.6500235022.

The spelling of 2134978571 in words is "two billion, one hundred thirty-four million, nine hundred seventy-eight thousand, five hundred seventy-one".