2130771 has 4 divisors (see below), whose sum is σ = 2841032. Its totient is φ = 1420512.

The previous prime is 2130769. The next prime is 2130803. The reversal of 2130771 is 1770312.

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

It is not a de Polignac number, because 2130771 - 2¹ = 2130769 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 3 + 0 + 7⁵ + 7⁵ + 1 .

It is a D-number.

It is a Duffinian number.

2130771 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2130701) 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, 355126 + ... + 355131.

It is an arithmetic number, because the mean of its divisors is an integer number (710258).

2^2130771 is an apocalyptic number.

2130771 is a deficient number, since it is larger than the sum of its proper divisors (710261).

2130771 is an equidigital number, since it uses as much as digits as its factorization.

2130771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710260.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 2130771 is about 1459.7160682818. The cubic root of 2130771 is about 128.6803575983.

The spelling of 2130771 in words is "two million, one hundred thirty thousand, seven hundred seventy-one".