2130971 has 8 divisors (see below), whose sum is σ = 2242944. Its totient is φ = 2021760.

The previous prime is 2130959. The next prime is 2130979. The reversal of 2130971 is 1790312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995 + ... + 2291.

It is an arithmetic number, because the mean of its divisors is an integer number (280368).

2^2130971 is an apocalyptic number.

2130971 is a deficient number, since it is larger than the sum of its proper divisors (111973).

2130971 is a wasteful number, since it uses less digits than its factorization.

2130971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 2130971 is about 1459.7845731477. The cubic root of 2130971 is about 128.6843835692.

The spelling of 2130971 in words is "two million, one hundred thirty thousand, nine hundred seventy-one".