2130591 has 8 divisors (see below), whose sum is σ = 2851120. Its totient is φ = 1415232.

The previous prime is 2130581. The next prime is 2130613. The reversal of 2130591 is 1950312.

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

It is not a de Polignac number, because 2130591 - 2¹⁴ = 2114207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196 + ... + 2073.

It is an arithmetic number, because the mean of its divisors is an integer number (356390).

2^2130591 is an apocalyptic number.

2130591 is a deficient number, since it is larger than the sum of its proper divisors (720529).

2130591 is a wasteful number, since it uses less digits than its factorization.

2130591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 2130591 is about 1459.6544111535. The cubic root of 2130591 is about 128.6767340090.

It can be divided in two parts, 21 and 30591, that multiplied together give a triangular number (642411 = T₁₁₃₃).

The spelling of 2130591 in words is "two million, one hundred thirty thousand, five hundred ninety-one".